Your problem description is not very clear. I assume that you are talking about ASA.
However, from what I could understand from the details. There seems to be a transaction that the database expects in the log and for some reason the log got corrupted or was made unavailable prior to checkpoint.
You can start the Wassen.db using the -f switch and force the database to start without the transaction log. Remember this will leave the db in a highly inconsistent state, and you need to immediately unload the database and rebuild a new one.