diff --git a/README.md b/README.md
index 61fa7965..bc700bfd 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ LNbits is a very simple Python server that sits on top of any funding source, an
 * Fallback wallet for the LNURL scheme
 * Instant wallet for LN demonstrations
 
-LNbits can run on top of any lightning-network funding source, currently there is support for LND, c-lightning, Spark, LNpay, OpenNode, lntxbot, with more being added regularily.
+LNbits can run on top of any lightning-network funding source, currently there is support for LND, c-lightning, Spark, LNpay, OpenNode, lntxbot, with more being added regularly.
 
 See [lnbits.org](https://lnbits.org) for more detailed documentation.
 
diff --git a/docs/guide/installation.md b/docs/guide/installation.md
index 4f1bb853..eabef16e 100644
--- a/docs/guide/installation.md
+++ b/docs/guide/installation.md
@@ -13,6 +13,7 @@ Download this repo and install the dependencies:
 ```sh
 git clone https://github.com/lnbits/lnbits.git
 cd lnbits/
+# ensure you have virtualenv installed, on debian/ubuntu 'apt install python3-venv' should work
 python3 -m venv venv
 ./venv/bin/pip install -r requirements.txt
 cp .env.example .env
diff --git a/lnbits/app.py b/lnbits/app.py
index cd700f5c..6137fdaf 100644
--- a/lnbits/app.py
+++ b/lnbits/app.py
@@ -1,6 +1,7 @@
 import sys
-import importlib
 import warnings
+import importlib
+import traceback
 
 from quart import g
 from quart_trio import QuartTrio
@@ -23,7 +24,6 @@ from .tasks import (
     invoice_listener,
     internal_invoice_listener,
     webhook_handler,
-    grab_app_for_later,
 )
 from .settings import WALLET
 
@@ -48,7 +48,7 @@ def create_app(config_object="lnbits.settings") -> QuartTrio:
     register_commands(app)
     register_request_hooks(app)
     register_async_tasks(app)
-    grab_app_for_later(app)
+    register_exception_handlers(app)
 
     return app
 
@@ -114,10 +114,6 @@ def register_filters(app: QuartTrio):
 def register_request_hooks(app: QuartTrio):
     """Open the core db for each request so everything happens in a big transaction"""
 
-    @app.before_request
-    async def before_request():
-        g.nursery = app.nursery
-
     @app.after_request
     async def set_secure_headers(response):
         secure_headers.quart(response)
@@ -139,3 +135,21 @@ def register_async_tasks(app):
     @app.after_serving
     async def stop_listeners():
         pass
+
+
+def register_exception_handlers(app):
+    @app.errorhandler(Exception)
+    async def basic_error(err):
+        etype, value, tb = sys.exc_info()
+        traceback.print_exception(etype, err, tb)
+        exc = traceback.format_exc()
+        return (
+            "\n\n".join(
+                [
+                    "LNbits internal error!",
+                    exc,
+                    "If you believe this shouldn't be an error please bring it up on https://t.me/lnbits",
+                ]
+            ),
+            500,
+        )
diff --git a/lnbits/core/crud.py b/lnbits/core/crud.py
index b9f02070..47623cc2 100644
--- a/lnbits/core/crud.py
+++ b/lnbits/core/crud.py
@@ -267,12 +267,23 @@ async def get_payments(
 async def delete_expired_invoices(
     conn: Optional[Connection] = None,
 ) -> None:
+    # first we delete all invoices older than one month
+    await (conn or db).execute(
+        """
+        DELETE FROM apipayments
+        WHERE pending = 1 AND amount > 0 AND time < strftime('%s', 'now') - 2592000
+        """
+    )
+
+    # then we delete all expired invoices, checking one by one
     rows = await (conn or db).fetchall(
         """
         SELECT bolt11
         FROM apipayments
-        WHERE pending = 1 AND amount > 0 AND time < strftime('%s', 'now') - 86400
-    """
+        WHERE pending = 1
+          AND bolt11 IS NOT NULL
+          AND amount > 0 AND time < strftime('%s', 'now') - 86400
+        """
     )
     for (payment_request,) in rows:
         try:
diff --git a/lnbits/core/templates/core/wallet.html b/lnbits/core/templates/core/wallet.html
index c6851793..b3f7b1c1 100644
--- a/lnbits/core/templates/core/wallet.html
+++ b/lnbits/core/templates/core/wallet.html
@@ -129,7 +129,7 @@
                 <q-badge v-if="props.row.tag" color="yellow" text-color="black">
                   <a
                     class="inherit"
-                    :href="['/', props.row.tag, '?usr=', user.id].join('')"
+                    :href="['/', props.row.tag, '/?usr=', user.id].join('')"
                   >
                     #{{ props.row.tag }}
                   </a>
diff --git a/lnbits/core/views/api.py b/lnbits/core/views/api.py
index 89330ab3..2547435e 100644
--- a/lnbits/core/views/api.py
+++ b/lnbits/core/views/api.py
@@ -3,7 +3,7 @@ import json
 import lnurl  # type: ignore
 import httpx
 from urllib.parse import urlparse, urlunparse, urlencode, parse_qs, ParseResult
-from quart import g, jsonify, make_response, url_for
+from quart import g, current_app, jsonify, make_response, url_for
 from http import HTTPStatus
 from binascii import unhexlify
 from typing import Dict, Union
@@ -310,8 +310,8 @@ async def api_payments_sse():
             await send_event.send(("keepalive", ""))
             await trio.sleep(25)
 
-    g.nursery.start_soon(payment_received)
-    g.nursery.start_soon(repeat_keepalive)
+    current_app.nursery.start_soon(payment_received)
+    current_app.nursery.start_soon(repeat_keepalive)
 
     async def send_events():
         try:
diff --git a/lnbits/core/views/generic.py b/lnbits/core/views/generic.py
index e17d71b3..f48b054f 100644
--- a/lnbits/core/views/generic.py
+++ b/lnbits/core/views/generic.py
@@ -2,6 +2,7 @@ from os import path
 from http import HTTPStatus
 from quart import (
     g,
+    current_app,
     abort,
     jsonify,
     request,
@@ -154,7 +155,7 @@ async def lnurl_full_withdraw_callback():
     async def pay():
         await pay_invoice(wallet_id=wallet.id, payment_request=pr)
 
-    g.nursery.start_soon(pay)
+    current_app.nursery.start_soon(pay)
 
     balance_notify = request.args.get("balanceNotify")
     if balance_notify:
@@ -197,7 +198,7 @@ async def lnurlwallet():
         user = await get_user(account.id, conn=conn)
         wallet = await create_wallet(user_id=user.id, conn=conn)
 
-    g.nursery.start_soon(
+    current_app.nursery.start_soon(
         redeem_lnurl_withdraw,
         wallet.id,
         request.args.get("lightning"),
diff --git a/lnbits/extensions/livestream/lnurl.py b/lnbits/extensions/livestream/lnurl.py
index 1e021f85..3b9e7e31 100644
--- a/lnbits/extensions/livestream/lnurl.py
+++ b/lnbits/extensions/livestream/lnurl.py
@@ -61,7 +61,7 @@ async def lnurl_callback(track_id):
     if not track:
         return jsonify({"status": "ERROR", "reason": "Couldn't find track."})
 
-    amount_received = int(request.args.get("amount"))
+    amount_received = int(request.args.get("amount") or 0)
 
     if amount_received < track.min_sendable:
         return (
diff --git a/lnbits/extensions/lnurlp/lnurl.py b/lnbits/extensions/lnurlp/lnurl.py
index 79076564..5d8bcf08 100644
--- a/lnbits/extensions/lnurlp/lnurl.py
+++ b/lnbits/extensions/lnurlp/lnurl.py
@@ -54,7 +54,7 @@ async def api_lnurl_callback(link_id):
         min = link.min * 1000
         max = link.max * 1000
 
-    amount_received = int(request.args.get("amount"))
+    amount_received = int(request.args.get("amount") or 0)
     if amount_received < min:
         return (
             jsonify(
diff --git a/lnbits/extensions/lnurlp/views_api.py b/lnbits/extensions/lnurlp/views_api.py
index de36345a..cbe1bc4e 100644
--- a/lnbits/extensions/lnurlp/views_api.py
+++ b/lnbits/extensions/lnurlp/views_api.py
@@ -87,6 +87,9 @@ async def api_link_create_or_update(link_id=None):
         round(g.data["min"]) != g.data["min"] or round(g.data["max"]) != g.data["max"]
     ):
         return jsonify({"message": "Must use full satoshis."}), HTTPStatus.BAD_REQUEST
+    
+    if g.data["success_url"][:8] != "https://":
+        return jsonify({"message": "Success URL must be secure https://..."}), HTTPStatus.BAD_REQUEST
 
     if link_id:
         link = await get_pay_link(link_id)
diff --git a/lnbits/extensions/offlineshop/lnurl.py b/lnbits/extensions/offlineshop/lnurl.py
index 13944a29..d99e4cea 100644
--- a/lnbits/extensions/offlineshop/lnurl.py
+++ b/lnbits/extensions/offlineshop/lnurl.py
@@ -49,7 +49,7 @@ async def lnurl_callback(item_id):
         min = price * 995
         max = price * 1010
 
-    amount_received = int(request.args.get("amount"))
+    amount_received = int(request.args.get("amount") or 0)
     if amount_received < min:
         return jsonify(
             LnurlErrorResponse(
diff --git a/lnbits/extensions/subdomains/templates/subdomains/index.html b/lnbits/extensions/subdomains/templates/subdomains/index.html
index d62f8f38..74fd4ade 100644
--- a/lnbits/extensions/subdomains/templates/subdomains/index.html
+++ b/lnbits/extensions/subdomains/templates/subdomains/index.html
@@ -452,7 +452,10 @@
           id: this.domainDialog.data.wallet
         })
         var data = this.domainDialog.data
-        data.allowed_record_types = data.allowed_record_types.join(', ')
+        data.allowed_record_types =
+          typeof data.allowed_record_types === 'string'
+            ? data.allowed_record_types
+            : data.allowed_record_types.join(', ')
         console.log(this.domainDialog)
         if (data.id) {
           this.updateDomain(wallet, data)
diff --git a/lnbits/extensions/usermanager/crud.py b/lnbits/extensions/usermanager/crud.py
index 6470c413..dbee287c 100644
--- a/lnbits/extensions/usermanager/crud.py
+++ b/lnbits/extensions/usermanager/crud.py
@@ -17,7 +17,11 @@ from .models import Users, Wallets
 
 
 async def create_usermanager_user(
-    user_name: str, wallet_name: str, admin_id: str
+    user_name: str,
+    wallet_name: str,
+    admin_id: str,
+    email: Optional[str] = None,
+    password: Optional[str] = None,
 ) -> Users:
     account = await create_account()
     user = await get_user(account.id)
@@ -27,10 +31,10 @@ async def create_usermanager_user(
 
     await db.execute(
         """
-        INSERT INTO users (id, name, admin)
-        VALUES (?, ?, ?)
+        INSERT INTO users (id, name, admin, email, password)
+        VALUES (?, ?, ?, ?, ?)
         """,
-        (user.id, user_name, admin_id),
+        (user.id, user_name, admin_id, email, password),
     )
 
     await db.execute(
diff --git a/lnbits/extensions/usermanager/templates/usermanager/_api_docs.html b/lnbits/extensions/usermanager/templates/usermanager/_api_docs.html
index fbd13e72..2f516b28 100644
--- a/lnbits/extensions/usermanager/templates/usermanager/_api_docs.html
+++ b/lnbits/extensions/usermanager/templates/usermanager/_api_docs.html
@@ -48,6 +48,26 @@
       </q-card-section>
     </q-card>
   </q-expansion-item>
+  <q-expansion-item group="api" dense expand-separator label="GET user">
+    <q-card>
+      <q-card-section>
+        <code
+          ><span class="text-light-blue">GET</span>
+          /usermanager/api/v1/users/&lt;user_id&gt;</code
+        >
+        <h5 class="text-caption q-mt-sm q-mb-none">Body (application/json)</h5>
+        <h5 class="text-caption q-mt-sm q-mb-none">
+          Returns 201 CREATED (application/json)
+        </h5>
+        <code>JSON list of users</code>
+        <h5 class="text-caption q-mt-sm q-mb-none">Curl example</h5>
+        <code
+          >curl -X GET {{ request.url_root }}api/v1/users/&lt;user_id&gt; -H
+          "X-Api-Key: {{ g.user.wallets[0].inkey }}"
+        </code>
+      </q-card-section>
+    </q-card>
+  </q-expansion-item>
   <q-expansion-item group="api" dense expand-separator label="GET wallets">
     <q-card>
       <q-card-section>
@@ -114,7 +134,8 @@
         </h5>
         <code
           >{"admin_id": &lt;string&gt;, "user_name": &lt;string&gt;,
-          "wallet_name": &lt;string&gt;}</code
+          "wallet_name": &lt;string&gt;,"email": &lt;Optional string&gt;
+          ,"password": &lt;Optional string&gt;}</code
         >
         <h5 class="text-caption q-mt-sm q-mb-none">
           Returns 201 CREATED (application/json)
@@ -128,7 +149,8 @@
         <code
           >curl -X POST {{ request.url_root }}api/v1/users -d '{"admin_id": "{{
           g.user.id }}", "wallet_name": &lt;string&gt;, "user_name":
-          &lt;string&gt;}' -H "X-Api-Key: {{ g.user.wallets[0].inkey }}" -H
+          &lt;string&gt;, "email": &lt;Optional string&gt;, "password": &lt;
+          Optional string&gt;}' -H "X-Api-Key: {{ g.user.wallets[0].inkey }}" -H
           "Content-type: application/json"
         </code>
       </q-card-section>
diff --git a/lnbits/extensions/usermanager/templates/usermanager/index.html b/lnbits/extensions/usermanager/templates/usermanager/index.html
index 44837a54..a7514089 100644
--- a/lnbits/extensions/usermanager/templates/usermanager/index.html
+++ b/lnbits/extensions/usermanager/templates/usermanager/index.html
@@ -157,6 +157,18 @@
           v-model.trim="userDialog.data.walname"
           label="Initial wallet name"
         ></q-input>
+        <q-input
+          filled
+          dense
+          v-model.trim="userDialog.data.email"
+          label="Email"
+        ></q-input>
+        <q-input
+          filled
+          dense
+          v-model.trim="userDialog.data.password"
+          label="Password"
+        ></q-input>
 
         <q-btn
           unelevated
@@ -224,7 +236,14 @@
         usersTable: {
           columns: [
             {name: 'id', align: 'left', label: 'ID', field: 'id'},
-            {name: 'name', align: 'left', label: 'Username', field: 'name'}
+            {name: 'name', align: 'left', label: 'Username', field: 'name'},
+            {name: 'email', align: 'left', label: 'Email', field: 'email'},
+            {
+              name: 'password',
+              align: 'left',
+              label: 'Password',
+              field: 'password'
+            }
           ],
           pagination: {
             rowsPerPage: 10
@@ -299,7 +318,9 @@
           var data = {
             admin_id: this.g.user.id,
             user_name: this.userDialog.data.usrname,
-            wallet_name: this.userDialog.data.walname
+            wallet_name: this.userDialog.data.walname,
+            email: this.userDialog.data.email,
+            password: this.userDialog.data.password
           }
         }
 
diff --git a/lnbits/extensions/usermanager/views_api.py b/lnbits/extensions/usermanager/views_api.py
index 37c60446..98ceb70a 100644
--- a/lnbits/extensions/usermanager/views_api.py
+++ b/lnbits/extensions/usermanager/views_api.py
@@ -33,19 +33,29 @@ async def api_usermanager_users():
     )
 
 
+@usermanager_ext.route("/api/v1/users/<user_id>", methods=["GET"])
+@api_check_wallet_key(key_type="invoice")
+async def api_usermanager_user(user_id):
+    user = await get_usermanager_user(user_id)
+    return (
+        jsonify(user._asdict()),
+        HTTPStatus.OK,
+    )
+
+
 @usermanager_ext.route("/api/v1/users", methods=["POST"])
 @api_check_wallet_key(key_type="invoice")
 @api_validate_post_request(
     schema={
-        "admin_id": {"type": "string", "empty": False, "required": True},
         "user_name": {"type": "string", "empty": False, "required": True},
         "wallet_name": {"type": "string", "empty": False, "required": True},
+        "admin_id": {"type": "string", "empty": False, "required": True},
+        "email": {"type": "string", "required": False},
+        "password": {"type": "string", "required": False},
     }
 )
 async def api_usermanager_users_create():
-    user = await create_usermanager_user(
-        g.data["user_name"], g.data["wallet_name"], g.data["admin_id"]
-    )
+    user = await create_usermanager_user(**g.data)
     return jsonify(user._asdict()), HTTPStatus.CREATED
 
 
diff --git a/lnbits/tasks.py b/lnbits/tasks.py
index 0e2ff98d..756b1142 100644
--- a/lnbits/tasks.py
+++ b/lnbits/tasks.py
@@ -13,13 +13,6 @@ from lnbits.core.crud import (
 )
 from lnbits.core.services import redeem_lnurl_withdraw
 
-main_app: Optional[QuartTrio] = None
-
-
-def grab_app_for_later(app: QuartTrio):
-    global main_app
-    main_app = app
-
 
 deferred_async: List[Callable] = []