[Solved] GUI Not Working

Hi,

i got always the Message from the UI "Can not initialize UI".

Nothing special in the Logfile:

2020-04-11 10:32:14,285 - fabscan.server.FSScanServer - INFO - FabScanPi-Server 0.8.2
2020-04-11 10:32:14,287 - fabscan.scanner.interfaces - DEBUG - Scanner Type is: laserscanner
2020-04-11 10:32:14,946 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - Port in Config found
2020-04-11 10:32:14,948 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - Latest available firmware version is: v.20190811
2020-04-11 10:32:17,125 - fabscan.lib.util.FSUtil - INFO - avrdude-original: Using autoreset DTR on GPIO Pin 7
2020-04-11 10:32:17,676 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - Trying to connect Arduino on port: /dev/ttyAMA0
2020-04-11 10:32:20,686 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - Installed firmware version: v.20190811
2020-04-11 10:32:20,687 - fabscan.scanner.laserscanner.driver.FSSerial - INFO - FabScanPi is connected to FabScanPi HAT or compatible on port: /dev/ttyAMA0
2020-04-11 10:32:22,694 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - Connection baudrate is: 57600
2020-04-11 10:32:22,695 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - Firmware flashing baudrate is: 115200
2020-04-11 10:32:22,696 - fabscan.scanner.laserscanner.FSHardwareController - DEBUG - Reset FabScanPi HAT...
2020-04-11 10:32:23,022 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - M18;
2020-04-11 10:32:23,352 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - G07;
2020-04-11 10:32:23,853 - fabscan.scanner.laserscanner.driver.FSCamera - DEBUG - Cam Stream with Resolution (800, 600) stopped
2020-04-11 10:32:23,854 - fabscan.scanner.laserscanner.FSHardwareController - DEBUG - Reset FabScanPi HAT...
2020-04-11 10:32:24,182 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - M18;
2020-04-11 10:32:24,512 - fabscan.scanner.laserscanner.driver.FSSerial - DEBUG - G07;
2020-04-11 10:32:24,513 - fabscan.scanner.laserscanner.FSHardwareController - DEBUG - Hardware controller initialized...
2020-04-11 10:32:24,764 - fabscan.scanner.laserscanner.FSScanProcessor - INFO - Laser Scan Processor initilized...FSScanProcessor (urn:uuid:ab08ab0f-2309-44b8-952a-ea43f4dde6e6)
2020-04-11 10:32:24,765 - fabscan.server.FSWebServer - DEBUG - /usr/share/fabscanpi/
2020-04-11 10:32:24,793 - fabscan.FSScanner - INFO - Job scheduler started.
2020-04-11 10:32:24,794 - fabscan.FSScanner - INFO - Scanner initialized...
2020-04-11 10:32:24,795 - fabscan.FSScanner - INFO - Number of cpu cores: 4
2020-04-11 10:32:24,797 - fabscan.lib.util.FSDiscovery - INFO - Registering ip 192.168.2.125 to discovery service.
2020-04-11 10:32:25,371 - fabscan.lib.util.FSDiscovery - INFO - Successfully registered to find.fabscan.org
2020-04-11 10:32:25,502 - fabscan.FSScanner - INFO - Added discovery scheduling job.

Where can a look further ?
Regards,
Michael