I created some reputations to test with, then deleted them. Now when I go to the reputation page it looks like this; the "new" button only lets me create tiers, not reputations, and as far as I can tell there's no way to get back to the view where I can. (The "previous page" button goes back to the main menu.)

Minecraft 1.16.5
Forge 36.1.13
HQM 1.16.2-5.5.6