Answered X axis crooked, too low on right side

I got my first 3D printer, the Robo 3D R1+ a few months back and its been working perfectly. Earlier I had a small jam in the hot end which was easily cleaned out(my father-in-law tilted the entire system to get to the two screws in order to remove the hot end, which I think is the cause of the issue).

However, after putting the hot end back in place, it seems that the x-axis is now crooked on the right side, and presses into the bed whenever printing. It prints perfectly on the left side, however, after attempting to print a calibration circle, its clear that the right end is somehow a few millimeters lower than it should be.

 

Turn the lead screws by hand until it seems even side to side

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Also check the y axis switches to make sure they didn't come loose. I'm pretty sure (as on my 2 R1 plus +) that the hotend just has a quick release bracket, not screwed in.

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Use two decks of cards or any two things that are the same height and then lower both sides by hand and make it until both sides are pressing against the cards, then go into which ever software you have controlling your printer and raise it 10 so it will be even and you can take the cards out.