Error 1359 in module 19

Hello to everybody, I’d like to know if someone knows why this error, 1359 in module 19, could appear. It raises when trying to restore a backup in a new database. I just found this information from Navision about this: 19-1359 #Err_DB_RestoreMustBeAloneXXX DB_Err(1359), but it’s not much explicit. Thanx.