Fixing an LG Dishwasher LE error code

My dishwasher stopped working when it started giving me an OE error code. Turned out to be a bad drain pump, which Ive replaced. After replacing the drain pump, I now get an LE error code. I wasn't getting this before. I understand the LE error code is associated with the water pump not working, but I find it hard to believe that the pump just failed at the same time as the drain pump. Is there something I could've messed up while replacing the drain pump that would cause this? When I start a Rinse cycle, I hear the dishwasher go through a drain cycle first, then the fill valve opens and I hear it fill with water. When it's time for the water pump to kick on, I just hear kind of a "Egh" noise a couple times, before it throws the code, almost as if the impeller is stuck or something.

I noticed a couple screws were stripped that screw the top piece (filter part) into the whole sump assembly. Besides that, couldnt find anything else.