The game crashes when I try to launch it with Carpet Trapdoors installed. I get the same result even if it's the only mod installed, with both versions marked for 1.20.1.

Unfortunately the logs aren't very helpful.

https://pastebin.com/qmDciJVT

It should be working now. Forge switched things up between versions 46 and 47. Give it a shot by downloading the latest Carpet Trapdoors version and let me know how if anything goes wrong.