UBB.threads PHP Forum Software Community Forums UBB.threads 7 Version 7 Support Error messages at new host

The first one says the MySQL server ran out of memory. The second says that the server has gone away. That means crashed.

The first one seems to indicate that it needs but doesn't have an OMG! amount of memory for the query. The query that it mentions is the one that gets the moderators list. That's only 13 forums. No idea how large the membership is, your URL is not in your profile.

The second says the server has crashed. Your server's MYSQL error log will contain any information available on that.