I am using multi-db but get error when installing it

Hello,

I am trying to install multi-DB plugin on my multi-site blog. When copying the tables, some tables Status says "not in new db". What do I do? My entire network is messed up. I have up to 5000 active blogs/sites. Please help.

I selected WPMU DEV Dashboard above because you did not include Multi-DB in the options. Please help me with this. Thanks