I am running a minecraft server with ChickenChunks-1.16.5-2.8.0.86-universal.jar and for some reason no chunks keep loaded at all. It does not make a difference whether I am on the server or not, also both the chunkloader and the spotloader don't work. I checked the config and everything seems to be right.

Same problem except it's only my overworld chunk loaders it appears. I have one in the nether for a lava pump which seems to work fine but the one in my overworld to keep the lava pumping into a tank quits working when I go to the nether to check on the pump site

Similar problem here, I added the mod in forge 1.16.5.
When nobody is near it or online, it does not work.

This should be resolved in the latest pending release.

Version 2.9.0.87 has now been released which should resolve this issue.