ERROR CONNECTION CLOSED on PHP repls

Problem description:
PHP or Custom Domain error. I keep getting the CONNECTION CLOSED error ever since I set up a php repl.

Expected behavior:
Run fine and not give any browser errors.

Actual behavior:
Giving browser error

Steps to reproduce:
idk what this means

Bug appears at this link:
https://chat.tlochsta.net/

Browser/OS/Device:
Google Chrome and Edge
Windows 11
HP Laptop

seems to be working now? It was probably still verifying