Need a log to help. My guess is that you must delete .minecraft/libraries/EMC since it contains outdated files.

Refused connection simply means that the proxy is not currently available to connect to. You can just try another one.

https://aristois.net/donate

Select your amount and type in your official mojang account username. You cannot donate with a cracked account.

It will take you to Stripe to complete the donation. Debit/credit cards, google pay, apple pay, and various bank transfer options are available. We do not support paypal or paysafecard, however visa gift cards may work.

@dyiing thanks

Might be a language thing, it doesn't overlap for me

Sounds like a fabric issue. Remove all addon mods from the same folder.

Fabulous is a shader, which conflicts with Aristois rendering

@dyiing I don't think so
I can check I had some installed on later versions of the client

You have to delete the "me" folder like it says. If you use a cracked launcher I cannot provide support.

Are you using 1.16.5? you need to update your forge version

I would start at the default amount (6) and if it's still too early, increase it a couple (8 or 10) until it's catching them accurately.

We do not support TLauncher. Aristois doesn't modify skins in any way.

Delete .minecraft/libraries/EMC/1.16.4/optifine.jar and relaunch

Need a crash log to help. Upload to https://paste.ee

Set your graphics to "fast" or "fancy"

In the main gui, under "properties" in the gui category

Just restart your game completely after it says "failed".