Not sure about the programing issues your having trouble with, but the brake? Typically some tech disconnects the brake switch due to a mal adjusted brake, or drive settings they cannot figure out. Faults, call backs and shutdowns related to the brake need to be dealt with properly, and not by disconnecting or altering program settings looking for a brake input signal. Re establish the brake contact and you’ll no doubt be subject to a rash of brake related calls, then it’ll be your turn to figure it out. Be sure to let your supervisor know about this if you haven’t already. And if there is any documentation from the previous service contractor, review that as well. The building manager might be well aware of a problem they thought was fixed months earlier.