Loading incident

When charging at an on-site charging station, the car first charged 18kWh in a normal way and then showed fault. On the charging plug it flashes red. So stop charging, pull plugs, re-activate charging station and the error remains. Then followed an hour-long hemorrhaging to eliminate the incident. Go to another charging station? Would it be nice, the car doesn’t drive in centimeters any more. The battery is 52% charged, the 12V battery shows after the attempts still 11,8V. A call at Mercedes did not bring a solution, so tow on the low loader and now I wait for a diagnosis. What kind of charging station the hotel has, I don’t know. First the main security exploded at Tesla, now the EQE remains lying, why do I always have to have the problems? Who still has similar problems? LG Bernd