Homematic Bindings installation problem


ich freshly installed openhabian on my RPi3 with HM-MOD-RPi-PCB. I installed homegear, made (I think) all the adjustments and tried to install the homematic bindings. Unfortunately, the installation will never end.

When I did this the first time, I remember for it to be very quickly successful. Now, it won’t stop. When I just reload the page, lets say in another tab, I can see it to be installed. But I can not find any device/bridge. Then I tried to uninstall it, but that process also takes forever and will not stop.

How can I fix it?