Chunk bug kicking players

Hello. I am an admin on a FTB direwolf20 server. We recently had a problem of chunks in a certain radius near a member’s base kicking people of the server. We fixed it Rolling back a backup, but i would like to now how to fix that. I personally experianced it tp-ing near the base,everything was ok until i entered a new chunk and got kicked.
Plugins:
Total economy
Seriousvote
WorldEdit
Nucleus
Luckyperms
MagiBridge
Huskycrates
Griefpervention
BuyCraftX

Is there anything informative in the server.log (or debug.log) when this happens? It could be caused by lag originating from a large number of entities (or tile entities) at that site, or possibly some other specific modded item (eg. a chunkloader) causing issues.