Hi, Sue,
What is the exact wording of the error message? Is the message the same in GL as in AP?
Have you run a data integrity check on your data and does it report any errors? If so and if the Rebuild button presents itself, make certain you have made a current backup and select the Rebuild button. Then, run DIC again to make sure it doesn't report further errors. You may need to run DIC and Rebuild more than once.
Has anything changed on your system in the last couple of weeks?
You may want to contact your dealer and let them know what is occurring.
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Regards,
Softrak Tech Support