1. My site got 500 error from time to tome due to too many running processes (the hosting server limit is 25). The process keep running and frozen is public_html/index.php. My guess about possible reason of the issue:
1) Previous modification on Virtuemart, which is related to index.php
2) Currently a part of the site (only subsites with subdomain .com, other subsites with subdomain like .ca, co.uk are ok) got a “user cannot logout” issue, I am not sure if this is related to the running index.php
3) htaccess issue…
Anyway, a thorough investigation may be needed.
2. Joomla core SEF
Core SEF worked fine on the site. However, a programmer tried to install sh404sef to fix the 500 error (maybe he made other changes). The site was messed up and the core SEF is lost, even after I uninstalled the sh404sef, deleted all related tables, and changed the htaccess file. Need to fix it and get back the Joomla core SEF
