# is Not a Valid MySQL resource
When the database connection type is NOT MySQLi (that is, MySQL), the pending-database and the vB-database connections are not always unique. So when we close the pending-database in favor of the vB-database, it closes both and we fatal out.
Fixed in Alpha 2. But you should really be using MySQLi at this point. I don't think there's any reason not to update your config file. If you meet the other requirements for VaultWiki 4, then the MySQLi library is available.