Pro Sites will not install, it requires Multisite Plug,

Pro Sites will not install, it requires Multisite Plug, the database maybe corrupt, GoDaddy reinstalled and deleted part on the installtion.

Pro Sites will not install, it requires the Multisite Plug in manager. My admin panel says Multisite Plugin Manager is activated. Is there something else I have to do? Are there other plugins I need to install first?

I would like to have Multisites installed and properly configured on this GoDaddy server setup.

I have been working on this for the past 12 hours... HELP..!