You are using Lemehost V2, the new version with a fresh database.

Check Lemehost V1 Status

Versions

(4.21.1 - 5.36.0) 1.1.1 (4.20.0 - 5.36.0) 1.1.0 (4.20.0 - 5.36.0) 1.0.1 (4.20.0 - 4.21.1) 1.0.0

ShortSneak (4.20.0 - 4.21.1) 1.0.0

Add experimental 1.20 Short Sneak feature to your server

73

Read more on poggit

ShortSneak

Short Sneak is a new experimental feature in 1.19.80 which will be added in 1.20, it can make you sneak shorter so you can enter 1.5 blocks like in Minecraft: Java Edition