diff --git a/contrib/packager.io/functions.sh b/contrib/packager.io/functions.sh
index eede301be1..c784ef34c4 100755
--- a/contrib/packager.io/functions.sh
+++ b/contrib/packager.io/functions.sh
@@ -166,6 +166,18 @@ function detect_envs() {
     export INVENTREE_DB_PASSWORD=$(jq -r '.[].database.PASSWORD' <<< ${INVENTREE_CONF_DATA})
     export INVENTREE_DB_HOST=$(jq -r '.[].database.HOST' <<< ${INVENTREE_CONF_DATA})
     export INVENTREE_DB_PORT=$(jq -r '.[].database.PORT' <<< ${INVENTREE_CONF_DATA})
+
+    # Parse site URL if not already set
+    if [ -z "${INVENTREE_SITE_URL}" ]; then
+      # Try to read out the app config
+      if [ -n "$(inventree config:get INVENTREE_SITE_URL)" ]; then
+        echo "# POI03| Getting site URL from app config"
+        export INVENTREE_SITE_URL=$(inventree config:get INVENTREE_SITE_URL)
+      else
+        echo "# POI03| Getting site URL from config file"
+        export INVENTREE_SITE_URL=$(jq -r '.[].site_url' <<< ${INVENTREE_CONF_DATA})
+      fi
+    fi
   else
     echo "# POI03| No config file found: ${INVENTREE_CONFIG_FILE}, using envs or defaults"
 
@@ -190,6 +202,8 @@ function detect_envs() {
     export INVENTREE_DB_HOST=${INVENTREE_DB_HOST:-samplehost}
     export INVENTREE_DB_PORT=${INVENTREE_DB_PORT:-123456}
 
+    export INVENTREE_SITE_URL=${INVENTREE_SITE_URL}
+
     export SETUP_CONF_LOADED=true
   fi
 
@@ -209,6 +223,7 @@ function detect_envs() {
   fi
   echo "# POI03|    INVENTREE_DB_HOST=${INVENTREE_DB_HOST}"
   echo "# POI03|    INVENTREE_DB_PORT=${INVENTREE_DB_PORT}"
+  echo "# POI03|    INVENTREE_SITE_URL=${INVENTREE_SITE_URL}"
 }
 
 function create_initscripts() {
@@ -313,7 +328,7 @@ function update_or_install() {
   # Run update as app user
   echo "# POI12| Updating InvenTree"
   sudo -u ${APP_USER} --preserve-env=$SETUP_ENVS bash -c "cd ${APP_HOME} && pip install wheel"
-  sudo -u ${APP_USER} --preserve-env=$SETUP_ENVS bash -c "cd ${APP_HOME} && invoke update | sed -e 's/^/# POI12| u | /;'"
+  sudo -u ${APP_USER} --preserve-env=$SETUP_ENVS bash -c "cd ${APP_HOME} && set -e && invoke update | sed -e 's/^/# POI12| u | /;'"
 
   # Make sure permissions are correct again
   echo "# POI12| Set permissions for data dir and media: ${DATA_DIR}"
@@ -373,10 +388,15 @@ function set_site() {
 
   # Check if INVENTREE_SITE_URL in inventree config
   if [ -z "$(inventree config:get INVENTREE_SITE_URL)" ]; then
-    echo "# POI14| Setting up InvenTree site URL"
-    inventree config:set INVENTREE_SITE_URL=http://${INVENTREE_IP}
+    # Prefer current INVENTREE_SITE_URL if set
+    if [ -n "${INVENTREE_SITE_URL}" ]; then
+      inventree config:set INVENTREE_SITE_URL=${INVENTREE_SITE_URL}
+    else
+      echo "# POI14| Setting up InvenTree site URL"
+      inventree config:set INVENTREE_SITE_URL=http://${INVENTREE_IP}
+    fi
   else
-    echo "# POI14| Site URL already set - skipping"
+    echo "# POI14| Site URL already set to '$INVENTREE_SITE_URL' - skipping"
   fi
 }
 
diff --git a/contrib/packager.io/postinstall.sh b/contrib/packager.io/postinstall.sh
index 4e5734fb5a..3d96188392 100755
--- a/contrib/packager.io/postinstall.sh
+++ b/contrib/packager.io/postinstall.sh
@@ -14,7 +14,7 @@ echo "# POI01| Importing functions"
 echo "# POI01| Functions imported"
 
 # Envs that should be passed to setup commands
-export SETUP_ENVS=PATH,APP_HOME,INVENTREE_MEDIA_ROOT,INVENTREE_STATIC_ROOT,INVENTREE_BACKUP_DIR,INVENTREE_SITE_URL,INVENTREE_PLUGINS_ENABLED,INVENTREE_PLUGIN_FILE,INVENTREE_CONFIG_FILE,INVENTREE_SECRET_KEY_FILE,INVENTREE_DB_ENGINE,INVENTREE_DB_NAME,INVENTREE_DB_USER,INVENTREE_DB_PASSWORD,INVENTREE_DB_HOST,INVENTREE_DB_PORT,INVENTREE_ADMIN_USER,INVENTREE_ADMIN_EMAIL,INVENTREE_ADMIN_PASSWORD,SETUP_NGINX_FILE,SETUP_ADMIN_PASSWORD_FILE,SETUP_NO_CALLS,SETUP_DEBUG,SETUP_EXTRA_PIP,SETUP_PYTHON,SETUP_ADMIN_NOCREATION
+export SETUP_ENVS=PATH,APP_HOME,INVENTREE_MEDIA_ROOT,INVENTREE_STATIC_ROOT,INVENTREE_BACKUP_DIR,INVENTREE_PLUGINS_ENABLED,INVENTREE_PLUGIN_FILE,INVENTREE_CONFIG_FILE,INVENTREE_SECRET_KEY_FILE,INVENTREE_DB_ENGINE,INVENTREE_DB_NAME,INVENTREE_DB_USER,INVENTREE_DB_PASSWORD,INVENTREE_DB_HOST,INVENTREE_DB_PORT,INVENTREE_ADMIN_USER,INVENTREE_ADMIN_EMAIL,INVENTREE_ADMIN_PASSWORD,INVENTREE_SITE_URL,SETUP_NGINX_FILE,SETUP_ADMIN_PASSWORD_FILE,SETUP_NO_CALLS,SETUP_DEBUG,SETUP_EXTRA_PIP,SETUP_PYTHON,SETUP_ADMIN_NOCREATION
 
 # Get the envs
 detect_local_env
diff --git a/contrib/packager.io/preinstall.sh b/contrib/packager.io/preinstall.sh
index f15fb49e06..9ae899fdb9 100755
--- a/contrib/packager.io/preinstall.sh
+++ b/contrib/packager.io/preinstall.sh
@@ -6,7 +6,7 @@ echo "# PRI01| Running preinstall script - start - $(date)"
 PATH=${APP_HOME}/env/bin:${APP_HOME}/:/sbin:/bin:/usr/sbin:/usr/bin:
 
 # Envs that should be passed to setup commands
-export SETUP_ENVS=PATH,APP_HOME,INVENTREE_MEDIA_ROOT,INVENTREE_STATIC_ROOT,INVENTREE_BACKUP_DIR,INVENTREE_PLUGINS_ENABLED,INVENTREE_PLUGIN_FILE,INVENTREE_CONFIG_FILE,INVENTREE_SECRET_KEY_FILE,INVENTREE_DB_ENGINE,INVENTREE_DB_NAME,INVENTREE_DB_USER,INVENTREE_DB_PASSWORD,INVENTREE_DB_HOST,INVENTREE_DB_PORT,INVENTREE_ADMIN_USER,INVENTREE_ADMIN_EMAIL,INVENTREE_ADMIN_PASSWORD,SETUP_NGINX_FILE,SETUP_ADMIN_PASSWORD_FILE,SETUP_NO_CALLS,SETUP_DEBUG,SETUP_EXTRA_PIP,SETUP_PYTHON
+export SETUP_ENVS=PATH,APP_HOME,INVENTREE_MEDIA_ROOT,INVENTREE_STATIC_ROOT,INVENTREE_BACKUP_DIR,INVENTREE_PLUGINS_ENABLED,INVENTREE_PLUGIN_FILE,INVENTREE_CONFIG_FILE,INVENTREE_SECRET_KEY_FILE,INVENTREE_DB_ENGINE,INVENTREE_DB_NAME,INVENTREE_DB_USER,INVENTREE_DB_PASSWORD,INVENTREE_DB_HOST,INVENTREE_DB_PORT,INVENTREE_ADMIN_USER,INVENTREE_ADMIN_EMAIL,INVENTREE_ADMIN_PASSWORD,INVENTREE_SITE_URL,SETUP_NGINX_FILE,SETUP_ADMIN_PASSWORD_FILE,SETUP_NO_CALLS,SETUP_DEBUG,SETUP_EXTRA_PIP,SETUP_PYTHON
 
 if test -f "${APP_HOME}/env/bin/pip"; then
   # Check if clear-generated is available
diff --git a/docs/docs/settings/error_codes.md b/docs/docs/settings/error_codes.md
index 0b422441d0..47253c4777 100644
--- a/docs/docs/settings/error_codes.md
+++ b/docs/docs/settings/error_codes.md
@@ -9,9 +9,12 @@ Errors - These are critical errors which should be addressed as soon as possible
 #### INVE-E1
 **No frontend included - Backend/web**
 
-Only stable / production releases of InvenTree include the frontend panel. This is both a measure of resource-saving and attack surface reduction. If you want to use the frontend panel, you can either:″
+Only stable / production releases of InvenTree include the frontend panel. This is both a measure of resource-saving and attack surface reduction.
+
+If you want to use the frontend panel, you can either:
+
 - use a docker image that is version-tagged or the stable version
-- use a package version that is from the stable or version stream
+- use a package version that is from the stable or version stream - if you are and it is not working, run `sudo inventree run cli update` to re-run the upgrade
 - install node and yarn on the server to build the frontend with the [invoke](../start/invoke.md) task `int.frontend-build`
 
 Raise an issue if none of these options work.
diff --git a/src/backend/InvenTree/web/templates/web/index.html b/src/backend/InvenTree/web/templates/web/index.html
index 879f7daf2a..26ed53e62c 100644
--- a/src/backend/InvenTree/web/templates/web/index.html
+++ b/src/backend/InvenTree/web/templates/web/index.html
@@ -13,7 +13,7 @@
 </head>
 
 <body>
-  <div id="root"></div>
+  <div id="root">If you see this text there might be an Issue with your update - see <a href="https://docs.inventree.org/en/stable/settings/error_codes/#inve-e1">INVE-E1</a> in the docs for help</div>
   <div id="spa_settings">{% spa_settings %}</div>
   {% if bundle == "NOT_FOUND" %}
   <div id="spa_bundle_error">