Lulzbot Mini - Initial Start failed after replacement heated bed

Hello community:

Our LULZBOT MINI has worked well for the last few years. After replacing the heating plate, the MINI no longer starts. See attached youtube video.
Can someone help me what to do?

Issue with MINI

I walked along the Y-AXIS Step-by-step by using the manual controls.
When I hit the end position in the back, the Console showed “<echo:endstops hit: X:-2.00 Y:-76.82”. This message does not appear when I hit the other endstop in the front.

Update 2: I found the problem: One cable of the endswitch is loose. :frowning: