You can try getting a hold of Ian @reefdiver from Sustainable Maine Canada. I believe that is the same pump that goes into the
ESHOPPS PSK-100H HOB SKIMMER which he sells at his store. I think that if he sells the skimmer then he should be able to get parts for it which means he should be able to get that pump for you.
I took the thing apart and put it back together and it seems to be working now ? Weird how all of a sudden nothing then it’s fine I’ll have to keep an eye on it for now