Garage Dirt Bike Jack Motorcycle Lift ATV Jack Heavy Duty Bike Lift (1500lbs Rated)

I bought this jack from a local place and it worked great the first few times with my mid-weight cruiser (almost 700 pounds). On the 3rd or 4th use recently the release pedal wouldn't drop the jack back down. The pedal wouldn't go down all the way and after trying pushing it down harder it suddenly released and lots of hydraulic fluid spilled out. It appears like the o-ring at the release pedal valve rolled out or something. I cannot find contact info for the MFG for trying to get a replacement either. I may have to try to rebuild it myself.