Concurrency Exception

The most common cause for this error is invalid Regional Settings. If the time format is not set to a windows default type, the database is unable to determine when changes are being made, resulting in the exception.

Verify/Change Regional Settings

  1. Access the Windows Run window by pressing the Windows key and R key on the keyboard.
    • Alternately, you can use the search feature on your taskbar.
  2. Type "intl.cpl" without the quotes.
  3. Click OK.
  4. Click Additional settings.
  5. In the Time tab: 
    • Verify the Time format is set to "h:mm:ss tt".
    • Verify the AM symbol is set to "AM".
    • Verify the PM symbol is set to "PM".
    • Verify the location is set to "United States".
  6. In the Date tab:
    • Verify that Short date is set to "m/d/yyyy".
    • Verify that Long date is set to "dddd, MMMM dd, yyyy".
  7. Click OK.
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