I get the error:

An error has occured in the script on this page

Line: 486

Char: 6

Error: 'time' is undefined

Code: 0

URL: file:///C:Riot%20Games%20League%20of...efault-en.html

I've done what even forum has said. I've cleared my cache, I've replace .js files, I've uninstalled and reinstalled Internet Explorer, I've uninstalled and reinstalled League of
Legends, I've opened ports, I've as previously stated done everything said.

Don't tell me to hit up, down, left, right, up, up, down, down, because the instant I click yes or no it closes the launcher.

I've spent 50 dollars on this game (35 on collectors pack and 15 on skins) and would really appreciate it if someone could tell me the ACTUAL way to fix it.