Memory violation error - launcher keeps crashing

Hi everybody, Since few weeks I'm experiencing launcher random crashes, while champion select, in lobby or after game (-> it's more strange than others; when I end game and click button to come back with game stats launcher doesn't open, it only appears in processes list and I can hear its sounds). I've sent lots of bugsplat reports. I discovered that this problem is probably 'memory violation' error, in attachment there are logs and memory dmps. It's really annoying, especially when I'm in champ select and have to quit game. ('there was problem with connecting to server...' message appears). This problem also affect my friends, so it isn't PC problem. Btw. it's fully up to date with good net connection. I also tried lol reinstall. By today new window shows multiple times in lobby (lolerr.jpg).

Are you experiencing same things? I upload my logs, dmps and pc conf. Hope somebody could help me or repair this problem as new patch.

EDIT: Here is latest bugsplat error zip: https://www.sendspace.com/file/g5qju6