Game crash/black screen after champ select.

It's only happening on my laptop, on personal computer it's not happening. Champ select is fine, I select the champion and the loading screen isn't loading at all. It's just a black screen, after I try to press escape it shows that the game crashed(the reconnect button), if I try to change to me desktop from league, it shows that I have to check my internet... Anyone knows the fix? P.S. sorry for the bad english.
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