Recovery from failed Purge.

[racelife]

I set up to purge at 90% and when I went to make sure that it purged it won't bring anything up but a blank white page with "Unable to connect to ZM db.SQLSTATE[HY000] [2002] No such file or directory" across the top. any tips on how I can fix that? Like go in the command line and delete some files and it will work fine again, or do I need to start from scratch? I'm running two 3mp Hikvision cameras and one 2mp Hosafe just for info.