Ender 3V2 bed problem

[unf0rg0tt3n]

Hey guys,

I am 3D printing for quite some years now and upgraded my wanhao to a ender 3 v2.
All worked fine at first, no problems at all.. very high quality prints.
Now, since a few days the bottom of my print bed (where the termistor and heater is) slides against and over the stepper for the bed. I even hear the thermal tape crackling over it.

So i havent messed with the z endstop but i cant higher the bed or the nozzle will crash into the glass.

How to fix this?

Thanks
Dennis