Partial Endpoint Update (PATCH) results in HTTP 500

Hi out there,

I'm implementing the provisioning of phones via SRAPS for a customer. I didn't test it the last two weeks, but two weeks ago everything worked fined. Today the same scripts aren't working. Every request (GET) is ok until the call (PATCH) to configure the endpoint. Result ist just:

{'status': 500, 'error': 'Internal Server Error', 'details': 'Please contact Snom for support'}

Already dived into the API documentation if something changed the last two weeks, but couldn't find anything. Is it a "normal" server failure (which will be solved soon) or am I missing something?

Thanks in advance

Chris