so here we have Fabric 1.18.2 with 0.13.3. and fabric-api-0.48.0+1.18.2.jar
fish_of_thieves-mc1.18.2-v1.0.3-fabric

not sure whats going on.. but i was testing out my modpack and doing some work on it.. when i had a world crash.. while not in overworld.

my modpack consists of over 300 mods. on 1.18.2. i have a mod called dimensional doors... which adds a roulette type dimensional door for different events. a fish from Fish of thieves tried spawned in that dimensions water. then this crash.

(https://pastebin.ubuntu.com/p/PDmz4yVMXv/)

https://www.curseforge.com/minecraft/modpacks/rankersmp-exploratory-revelations
is my modpack. crash happened

Can you do more test? Try uninstall FOT, press F3 in the dimension that causes crash and send a screenshot. I wanted to see what "Biome builder PV: ..." looks like.

the doors take you to a random premade dim. theres a whole bunch of them.. so to get the specfic one i crashed in before,, may prove to be difficult. this one has water so i would expect simliar results if fish spawned

edit... forced spawn of fish...
crash-2022-03-29_15.23.51-server.txt

your mod still enabled . as its only upon the fish spawning i believe.

Fixed in 1.0.6, it shouldn't crash in other dimensions anymore. Hopefully.