Can anyone help me with a problem? I can pay.

Do you have any 3rd party soft ware running (lolreplay)?
Is your DirectX up-to-date Link (Microsoft)
Are your net frames up to date?
(I have a great AIO installer for runtimes if not/unsure) pm me <-
Uninstall your gfx card drivers completely & reinstall
Disable the debug version of DirectX

Additionally:
- Make sure your display settings are set properly (https://support.leagueoflegends.com/entries/28849700-Bug-Splat-and-Game-Crashes#wq8).
- If you can't get in, you can also change your resolution out of game by navigating to the following location of your League of Legends installation:
--Local Disk --> Riot Games --> League of Legends --> Config
--- Once here, you will find a file labeled 'game.cfg'
--- When you open this file, under the [General] section will be:
---- Height: XXXX and Width: XXXX.
--- This works exactly the same as your resolution settings on windows and can be changed to the values you specify.
- Check the Bug Splat and Game Crashes (https://support.leagueoflegends.com/entries/28849700-Bug-Splat-and-Game-Crashes) article in the knowledge base

Either then that I can only recommend making a suppor ticket and asking them directly
https://support.riotgames.com/hc/en-us/requests/new

Ex-Wrenchman