"Minecraft Crash"

hello my name is Adam Berdichevsky and i want to report a bug that i have in my account.
i joined the server that called "Hypixel" and i want to play a game "Cops and Robs" when i joined the server its asking me if you want to download the resource pack,i clicked "YES" and then another window popped out that was a bug "Minecraft Crash" and there is some stuff i dont know what is it so i sent some pictures,i hope you will help me as fast you can.

Thanks,Adam Berdichevsky.