Device not found in OpenSensors

Hi

Since 1april my AQE v2 gives an error "Authentication...Failed., Error: Unable to connect to MQTT server" and then it reboots, endless crash loop.
I tried to claim it in OpenSensors, but that didn't work (device not found).
I read http://help.wickeddevice.com/t/aqev2-crash-loop-unable-to-connect-to-mqtt-server-authentication-failed/94 and I need your help.
I sent full log to the address support@wickeddevice.com.

Thank you for you help beforehand!