I was kicked from the game and got this message. After looking at the area with NBT Explorer I found that there were many entries with pipes and modules. I removed the entities with NBT Explorer and I was able to join the world again.

Are you sure this didn't happen when trying to open a terminal? That's pretty much the only case where a lot of NBT data gets sent.

Yeah I don't have a terminal. This is what I saw yesterday when I checked NBT Explorer. I had about 4 stack limiters, 8 retrieval modules, and 2 extraction modules within a 2x2 chunk area

Nothing looking out of the ordinary there. Can you send the broken region file so I can investigate for myself?

The chunk was at -107,65. Unfortunately this is the one with the deleted entries that I uploaded to my server. Everything else is untouched

https://gofile.io/d/Q7KMMx

The fixed file won't really help me, sadly. Do you have any NBT-heavy items in the filter slots of your modules (stuff like enchanted books or other things that store additional data), and do you do any auto-crafting using the retrieval modules you mentioned?

My filter slots were for bonemeal, poppy, poisonous potato, iron, wheat, sugarcane, coal and there was no auto crafting

It is almost impossible that that setup caused the exception to occur. It was probably caused by another mod, and removing the Pretty Pipes data just happened to push it back below the limit.

If this exception occurs again, please be sure to save the region file and re-open this issue :)