Razer audio mixer XLR port problems

So i actually bought my razer audio mixer recently so i went to a music store to get an xlr cable unfortunately after i got the cable and got home to test it out on the mixer it wasn't working so i took the cable back to the music shop and we tested the cable there it worked perfectly. Well i took the cable back home and figured i would check it again and i found that i have to wiggle the cable to make a connection and hold it in that position to make it work. Idk if the connectors in the back of the mixer some how got damaged while it was in transit is there anything i can do to fix this or should i just order a new mixer?