I tried adding this mod to my mod folder and decided to play on a super flat world I used for playing around with mods, and the world would not load. I tried with just this mod (paladin-furniture-mod-1.1.1-fabric-mc1.19.jar), and it requirements (fabric-api-0.69.0+1.19.2.jar, cloth-config-8.2.88-fabric.jar), however, I was unable to load into a new world.
Here is the log:
latest.log

Nevermind, I allocated 1GB more of RAM (total of 3GB), and it now works

How much RAM did you allocate to the game, and does this only happen with existing saves or on a new world as well, nothing in the log looks wrong.