@Dracconis My comments here have been more for the support requests to try to keep this as more of an issue tracker than a support forum. I don't have the knowledge to fix OptiFabric 0.14.3's ...

Sorry if i'm being a nuisance, I don't know if this is from fabric or one of the mods i'm trying to use, but whenever i start up Minecraft it instantly crashes but it was working fine the other day.