UBB.threads PHP Forum Software Community Forums UBB.threads 7 Version 7 Support Two minor issues after upgrade

https://www.siteground.com/kb/how_to_have_different_php_versions/
https://forums.cpanel.net/threads/htaccess-and-php-versions-questions.636029/

You should probably contact the admin of your server since there is nothing within UBB.threads which would force a different version of PHP than what it is given to work with.