I Can`t Join!

When I Try To Join The Server It Says, "Sorry, Failed to load your data! Please Contact A Staff

 

for me is it the same it says it just like his

 

I tried deleting .minecraft and installing again I set all my settings to low it worked first I joind skyblock and it didn't work anymore

 

here you have some screens

 

Hello, what version of Minecraft are you using? It must be a version 1.12 to 1.10 because 1.12.1/1.12.2 don't work on our server at this moment and time.

 

i also tried it on 1.10 but it said the same