Renault Integration "Failed to retrieve vehicle details from Renault Servers

For long time my Renault Integration was working perfectly.

Suddenly it stopped working and when i want to set it up again integration accepts Username and Password but afterwards the integration shows the error " Failed to retrieve vehicle details from Renault Server"

I had a look at the Logfile and it seems to me that the API answered. For excaple I can see the VIN-Number as a respond. That confuses me even more.

Any Suggestions?

Regards
Julius