Game Crashes after champion select

I got into a ranked game with a friend and once champion select was over and people were supposed to load into the game. The .exe quit responding, I tried to reconnect, not responding. I tried to exit and close the programs in the command prompt and restart, not responding. I restarted my pc, not responding. I allowed the exception in my firewall, not responding. I uninstalled and am currently re-installing, so we'll see how that goes. My friend is in a call with me and they all connected fine, so I don't know what changed from last night when I played to this morning.

Edit: Reinstall did nothing error code posted below

Problem signature: Problem Event Name: BEX Application Name: League of Legends.exe Application Version: 6.5.0.280 Application Timestamp: 56e0bbb7 Fault Module Name: StackHash_4c0d Fault Module Version: 0.0.0.0 Fault Module Timestamp: 00000000 Exception Offset: 80000008 Exception Code: c0000005 Exception Data: 00000008 OS Version: 6.1.7601.2.1.0.256.1 Locale ID: 1033 Additional Information 1: 4c0d Additional Information 2: 4c0d4d78887f76d971d5d00f1f20a433 Additional Information 3: 4c0d Additional Information 4: 4c0d4d78887f76d971d5d00f1f20a433

Edit 2: I fixed it, it was caused by AVG, their most recent update removed any exceptions to firewall I had set. I added the exceptions and the game loaded