The game crashed whilst rendering screenError: java.lang.NullPointerException: Cannot invoke "java.lang.Float.floatValue()" beca

[Tom1235]

Hello so i was trying to join my own server but when i add a server it says saving game and the game crashes i dont know what is causing this i've checked the logs and crash report alot of times can anyone help me and tell me what mod or things i need to delete or change please! 
heres the log: https://pastebin.com/hF25hF5m

heres the crash report: https://pastebin.com/MV4bhHcE
please help! thank you.

[Tom1235]

any help please

 

[Tom1235]

anyone?

 

[Tom1235]

found the fix its because of the client mod conflict