Serverless problems since 10.12

I am using serverless since few months quit stable, but since 10.12 all my requests execute after 25 seconds i already tried all different settings but at the end the process stops after 25 seconds and i get a error. I changed nothing on Docker ore on my files same settings since weeks.

{
"delayTime": 4967,
"error": "Error queuing workflow: <urlopen error [Errno 111] Connection refused>",
"executionTime": 25555,
"id": "819bd414-8034-4299-85e5-37e6d21554f8-e1",
"status": "FAILED",
"workerId": "hi1kfe0khfgay7"
}