Charging station was in use for 2 months in ups mode, in the evening found that it was discharged to 0%, although there was no load on it. When trying to charge, the value jumps between 10-50 watts for 10 seconds, then reboot and all over again.
There is an icon on the screen, but it is not in the manual and I don't understand what it means. If anyone has had something similar, please help me.

