Logging into the server on 1.7.10 constantly crashes my game

This happens completely randomly, It's happened when I try and hit someone in pvp, when I right click the compass in the hub, when I drop items, my entire game just crashes for no reason. I've attached a snip of the error

1. Watch your language (especially on the forums)
2.1.7.10 is an old update, that is why 1.12.2 is here. Use that instead.

1.7.10 should work but if it doesn't for some reason just switch up to 1.8.9 and any other versions.

As the error says: "you are using an unsupported modified version". 1.7.10 is and old version and if it doesn't work, just switch to 1.8 or even newer! That should fix your crashes