I'm afraid this isn't specifically anything to do with CoroUtil, but I chose to open the issue here because it is a build of CoroUtil I'm trying to get my hands on. The CurseForge website links to coros.us for newer builds, but it seems your webserver has decided to take a stab at giving you a headache. The MediaWiki part works fine as far as I can tell, but the other aspects of the site seem to just return a blank page.

I'm trying to get Weather2 working on 1.7.10, but it doesn't seem to be working, and I can only assume I have a version mismatch between CoroUtil and Weather2 - since my domain is Fabric, not Forge, I've got no earthly idea where else to check. I hope to be able to download your mods again soon, and especially look forward to seeing Weather2 on newer versions, keep up the good work!

(Also do you have a Discord? I'd join, Weather2 is a staple of my 1.12.2 experience.)