The leaderboards for those two categories are completely empty but the rest seem fine (from what I quickly checked).

I had a bunch of runs awaiting approval and they also seem to be gone.

Anyone know what happened?

Ah, nevermind. Checked Discord. Appears that it's an accidental deletion and the mods are currently working with SRC support to get the categories reinstated.

Hello! That was my mistake, I went to consolidate the ruleset among categories and accidentally yeeted the LOVE 3 category while doing so. Reinstating it didn't bring the runs back. I messaged support and they were swift in bringing everything back. Now all should work again. Apologies for the inconvenience!