UBB.threads is not compatible with PHP7 at this time, ideally PHP5.6 is what you'd want to be on; some hosts allow users to select the version of PHP that their site operates with. Additionally, UBB.threads requires mysql_connect, your host should have the handler installed for backwards compatibility.

I am a Web Development Contractor, I do not work for UBBCentral. I have provided free User to User Support since the beginning of these support forums.
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