Make sure there aren't any files related to Roblox on your computer when you do. This should fix any errors with the software. If the issue is server side, you are screwed until Roblox is fixed by its engineers/designers. Make sure you are using a compatible system to operate the most recent game files.
Why is Roblox upgrading so slow?
Fix 3: Update your network driver When your Roblox is lagging, it's generally a sign of a slow connection. Your outdated network driver can be the culprit and makes your game super laggy. To fix it, you need to update your network driver, especially if you can't remember when was the last time you updated it.
How do you upgrade Roblox?
Purchase an upgrade from the permanent upgrade store on the left of your screen. Purchase an upgrade from the permanent upgrade store on the left of your screen.
What does Roblox upgrading mean?
Upgrading means you are getting MULTIPLE of your items and training for just 1 item. Kind of like combining them. Downgrading means you are trading 1 of your items, for lots of items.