18345: Motivo: impossibile aprire il database configurato nell'oggetto Login durante la riconvalida dell'account di accesso per la connessione.
English translation: Reason: Failed to open the database configured in the login object while revalidating the login on the connection.Search for english version of this error message on google.
I always spent long time trying to translate error messages logged by application deployed at my Hebrew client and the translations did not match anyway. After long frustration, I finally found this site. So far, it has saved me hunderds of hours of laborous searching for translations of those Hebrew error messages.
I simply love it!