Change ACP link?

Hey, does anyone know a way to change the ACP link. For whatever reason, the ACP link for my site is broken lol.

by default the ACP takes you to https://mysite/acp/index.php?index/, however that just stopped working all of a sudden, now when I do that, it takes me to the home page of the site. However if I type, https://cult-gg.com/acp/index.php?/ it takes me to ACP like normal.

I have zero idea why this is happening, all of a sudden. I didn't mess with anything that should be causing this.

Nevermind, it fixed itself with a browser wipe. I should have tried that first. My apologies.