Have you tried making a test recording at home with the exact same gear, including the same memory card?
If you recorded the live performance at a high sampling rate, then when you test at home, try that rate again and note the results. Then try again with a lower sampling rate. If that works without errors, the problem is either the recorder or the card--so then try the high sampling rate again with another card, preferably of a different brand or type and/or from a different source. If that works OK, you found the problem.
--best regards