try

manage_scripts.sh

@@ -105,7 +105,7 @@ if os.path.exists(f):
     if changed:
         with open(f, 'w') as fh:
             json.dump(data, fh, indent=2)
-+"
+"
     log "Marked all running scripts as stopped in system_activity.json"
     log "Scripts stopped."
 }