help, launcher closes then opens again with no explanation when i click play

[grahamcracker3]

when i choose play the launcher closes and then opens back up with no explanation. i've tried on attack of the b team, tekkit, and blightfall, i've installed the latest version of java, and done all updates on my computer.

here is the latest crash report

https://pastebin.com/0nuHC1Pf

[JaariAtmc]

Downgrade your java to 8u51.