How to fix this problem:
1.Delete all roblox files from the computer.
2.If you have different computer install roblox on him. (If you don't have different computer, explain the situation to your friend who have roblox on computer and download all roblox files from his computer.)
3.Then copy all roblox the files into jumpdrive/USB drive.
4Then move those files over to the computer.
I think that must help.
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