Catch errors if the DB is not up

InvenTree/InvenTree/tasks.py

@@ -7,7 +7,9 @@ import requests
 import logging
 
 from datetime import datetime, timedelta
+
 from django.core.exceptions import AppRegistryNotReady
+from django.db.utils import OperationalError, ProgrammingError
 
 
 logger = logging.getLogger(__name__)
@@ -25,6 +27,7 @@ def schedule_task(taskname, **kwargs):
         logger.warning("Could not start background tasks - App registry not ready")
         return
 
+    try:
         if Schedule.objects.filter(func=taskname).exists():
             logger.info(f"Scheduled task '{taskname}' already exists. (Skipping)")
         else:
@@ -34,6 +37,9 @@ def schedule_task(taskname, **kwargs):
                 func=taskname,
                 **kwargs
             )
+    except (OperationalError, ProgrammingError):
+        # Required if the DB is not ready yet
+        pass
 
 
 def heartbeat():