So a couple of things i’ve noticed about your log file you provided:
- Metric crap ton of resources.
- Resources are giving errors! (<-- thats real bad)
- Metric crap ton of car mods and addon.
My suggested course of action would be:
- Resolve the errors given by the resources (https://pastebin.com/vZupb9RQ)
- Try joining a vanilla server (no car mods, basic resources)
If you can join a vanilla/stock server than it must be caused by one of the many resources or car mods. If this is the case I would put them back one by one (resources and mods) and see when adding a specific resource/mod the “unknown client” occurs again.