Borderlands 2 VIta help

I Need HELP!!! badly so at first i press start on my vita then it said file corrupted and then i tried again and it worked.but something seems wrong when i checked out my BA rank i was shocked it was back to 0 because i was at 48k+ so is there anyway i can get it back PSN:Spicylemon1320 help me please i need it back :(((((

and also my gaige was 59 when it happened and my 61 zero and salvador is ok also my level 33 commando and level 21 siren but my BA ranks tho