Some combination of these things, when you flip the switch on a Create wireless redstone signal, crashes the game. Attempting to load the world again gives you a "Connection Lost" error after successfully loading to 100% and then the game client immediately crashes.

If possible please advise on how to delete that one chunk from game files.

Crash Report:
crash-2022-10-06_00.33.08-server.txt

We did blacklist the swarm spider in 0.4.30 from spawners. To fix your issue you will need to edit your region file with an NBT editor, and delete or edit the spawner to solve this issue.
look for region r.-1.0.mca and search for a spawner in there

We did blacklist the swarm spider in 0.4.30 from spawners. To fix your issue you will need to edit your region file with an NBT editor, and delete or edit the spawner to solve this issue. look for region r.-1.0.mca and search for a spawner in there

Is there anything I can search for within NBTExplorer to find the spawner?

open up world\region\r.-1.0.mca in NBTExplorer as Mitchell suggested. scroll down and expand Chunk (-1,0) as per your error log. expand the block_entities section. Look through every entry there until you find minecraft:mob_spawner (should be one with around 21 entries)
modify the spawn data and spawn potentials to be a different mob

To moderators of this forum, this might be worth pinning somewhere as a worthwhile guide to link to for anyone else with this problem, both the spawner itself and how to fix it w/ NBT editing. This helped alot :)

To moderators of this forum, this might be worth pinning somewhere as a worthwhile guide to link to for anyone else with this problem, both the spawner itself and how to fix it w/ NBT editing. This helped alot :)

i doubt there'll be any need as we've blacklisted the spider from spawners, and it should prevent players from causing such an issue in the future, unless they mess with the config