Change the APScheduler Logic and try to catch more errors in Daemon

config.py

@@ -18,6 +18,9 @@ class Config:
     SESSION_COOKIE_SECURE = \
         os.environ.get('SESSION_COOKIE_SECURE', 'false').lower() == 'true'
 
+    ''' # Flask-APScheduler # '''
+    JOBS = []
+
     ''' # Flask-Assets '''
     ASSETS_DEBUG = os.environ.get('ASSETS_DEBUG', 'false').lower() == 'true'
 
@@ -112,6 +115,16 @@ class Config:
             fmt=app.config['NOPAQUE_LOG_FORMAT'],
             datefmt=app.config['NOPAQUE_LOG_DATE_FORMAT']
         )
+        if app.config['NOPAQUE_IS_PRIMARY_INSTANCE']:
+           app.config['JOBS'].append(
+                {
+                    "id": "daemon",
+                    "func": "app.daemon:daemon",
+                    "args": (app,),
+                    "trigger": "interval",
+                    "seconds": 3,
+                }
+           )
         if app.config['NOPAQUE_LOG_STDERR_ENABLED']:
             stream_handler = logging.StreamHandler()
             stream_handler.setFormatter(formatter)