How to fix?
It's easy! Just follow this:
- read this tutorial to know how to read game logs (not server logs).
- search for this text
limits mip level - identify the problematic texture, for example
Texture mcicons:item/icon_toggle_off with size 30x30 limits mip level from 3 to 1 - Fix the texture. \
To fix it you have to resize it to a size of: 16x16, 32x32, 64x64, 128x128, 256x256, etc.
You decide one of these.