need helppppp!!!!!!!

hello to everyon, i have a ranger lv 72 and i didn't play like 3 days on maple.
now when i try to get in i have code error at ch 1 y?!!?!??!?

 

Try downloading the new files, you might have outdated ones.

 

what is it new files??????

 

Go here to download the new files & report back if you continue to get the issues you had before.