10000183 
Message
Account already exists in table
Diagnosis
In the Account Category - Details window, in the Account Number column, you have attempted to manually enter an account number. However, the financial report template already includes this account number for another G/L account on the same level.
Procedure
In the Account Category - Details window, in the Account Number column, enter an account number that is not already in use for another G/L account on the same level.