Mobile App not working since Build 6114

Mobile App not working since Build 6114

Hello Everyone,

Since updating to Build 6114 the mobile App stopped working on our End. 
After typing in the Server Configuration, the Connection can be established.
unfortunately, we get an "unexpected error" when trying to reset the password while the registration process is still available and useable. Any Idea where the Problem could be or which Log-File can give me a clue to fix it myself?

Thanks.