ANSWER ID:34166

When does this error occur?

When entering a Time Billing invoice and you choose to Add Reimbursable Expense:

The following window allows you to select the Reimbursement Activity.

Clicking this dropdown arrows produces this error:

Clicking OK to the above message closes AccountEdge.

Workaround

Manually type an existing activity into the Reimbursement Activity field rather than clicking the dropdown arrow.