Error batches can occur in the General Ledger for a number of reasons. The most popular time of year for error batches to be created is in the first month of your new fiscal year; which is April for most of you.
The error batches occur because the New Year has not been created in the General Ledger.
Once the new year has been created in GL, then you can edit the description of the error batches and then post them. If error batches are still being created, check the posting Journal error report for further details.