[Problem with modpack "Ultra Modded Survival"]

So I need to contact he who made the modpack?
The strange thing is that it works for my brother but not for me

[Problem with modpack "Ultra Modded Survival"]

Hi!
First I'm new here so I don't know if I post it wrong, and if I post in wrong I'm sorry.

Me and my brother saw this modpack and ye we tryed to install it but it works fine for my brother:)

But when I copy the modpack link and paste it in the add modpack thing this Error came up when I start it and I don't know what is wrong pleace help me! <3

Screenshot on the problem :  '>

 

and ye I have tryd to  re install it a couple of times..
Jonathan