RADS error

Hmm Right so i was on League 15 minutes ago, then logged off to go do something came back. and went to open league. instead of the normal client i am greeted with when clicking on the short cut i got RADS error : Unspecified error occurred. Please check the logs for further information, was hoping someone could tell me what happened? since i was just on it now cant access it. have tried opening it as Administrator, i haven't uninstalled then reinstalled it yet just in case there is a solution for this problem. If you know anything about this i would be grateful to hear from you about it
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