There is nothing going on.. the forum was working perfectly prior to update 5.4 10914. There haven’t been any theme changes or any other changes to the site EXCEPT for this upgrade.
I’m pulling my hair out with all of this. I’m losing money and users. everyone is yelling at me
The only solution to bring the forum back is to roll back and stick with version 5.3… forever 
The only solution to bring the forum back is to roll back and stick with version 5.3… forever
Of course it isn’t. Be rational.
I have been looking and al I see so far is the theme not responding. But at the moment your server appears to have gone AWOL so I will come back later.
By the way what about WP 3.8? Have you moved to that?
I thought WP3.8 wasnt recommended with SP5.4 10914?
No, I did not install it on the second round.
It’s gone awol because I am rolling back again.
If you insist… the upgrade to 5.4 clearly listed 3.8 as a requirement… and we have had thousands of upgrades without any similar issue… so would just have to work the local issue on your server… but understand getting back on line…
How much would it cost for one of you guys to upgrade my system properly? This includes trouble shooting any problems that arise during the upgrade?
Effectively going from beginning to end. I just want this to work without anything crashing.
Update:
Worked with Brandon and he discovered the root of the issues: chat. More specifically, this one:
https://premium.wpmudev.org/project/wordpress-chat-plugin/
SP and WP chat don’t get along. Brandon disabled the chat and everything worked.