First thing you want to do is re-level the X axis. If you are of at an angle, you may be binding on the leadscrew and causing it to be unable to turn the motor If it is level at this point, you may have an electrical or a motor issue. Check that the motor coupler is down and tight and hasn’t partially worked loose on one of the pins. The red pin working lose for example will cause the motor to try and turn at double the expected rate, causing a bind. If you think it’s level and all the connections look right, I’d try undoing the coupler on the motor side, and see if the motor can turn freely without load. Also ensure that the leadscrew itself can still turn. It could theoretically be a bearing issue.
If none of those pan out, contact customer support. Those motors are pretty reliable though. I’ve killed exactly one of them on my older AO-100, and that was after much heavy use on the Y axis. The z axis motor barely even moves, so chances are you didn’t wear it out. I’d guess you are running into the binding issue combined with a loose fitting, but I can’t tell 100% from your video.