Explanation

This is caused by corruption in an .mdb file

Resolution
  1. Renamed the Customer's SMSStoreData.mdb file
  2. On Cyrious14 navigate to the Implementation folder and select the SMS folder
  3. Choose the appropriate version
  4. Choose the appropriate franchise or independent folder
  5. Open the StoreData folder
  6. Copy over the SMSStoreData.mdb file to the Customer's SMS folder
  7. Test
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