Is the error message something that you're seeing from QlikSense or is it from the driver, do you know?
If you aren't sure, one way that you can check is to enable driver manager tracing as shown here:
Turn on tracing, restart QlikSense and retry the operation which causes the problems. Then stop tracing and open the trace log file. Somewhere near the bottom of the log there should be an entry that returns SQL_ERROR if the driver is causing the problem, if there are no errors then it is likely related to QlikSense. If there are errors, copy them into the discussion to help the analysis.