Like the title says, my instance won't run after updating the fabric loader version from 1.15.10 to 1.16.9, likely due to the plethora of mods I (haphazardly) installed. I tried allocating more ram, but that didn't help.
I've linked the logs below, and a picture of the fabric loader version and game version. Hopefully that helps somehow, otherwise feel free to ask me some questions since I have no clue what I'm doing, and probably am killing my computer with the collection of mods I have (will provide that too once I can use my PC again, if needed).
