Thanks. Saving the style fixed that problem. I didn't find any htaccess files in the install. Running php -v from the commandline shows I'm running 7.2.10. Php.info file says the same thing. How do I enable debugging?

The Stovebolt Geek
https://www.stovebolt.com/ubbthreads/ubbthreads.php

Server Information
UBB.threads Version 7.7.5
Release 20201027
Server OS Linux
Server Load 0.16
Web Server Apache/2.4.6
PHP Version 7.4.33
MYSQL Version 5.7.43
Database Size 1.85 GB