I dont know what they said by "Pepe очень любит пэ ха пэ. Но его это не спасло." , but they give us this
https://innoctf.com/problem-static/web/phpiserable/index.php
and the login
http://188.130.155.58:10003/

when we read the code we will need to put username "admin" and password
we must put password plain text that equal in md5 "0e111111111111111111111111111111"
so the password is 240610708  = 0e462097431906509019562988736854
because php understands them as both being zero to the power something big. So zero

and you will get "

This is one of the reasons why PHP is bad language. InnoCTF{05fe6d8bb61f9115b672e73282e0cda7}

"

#0v3n_Sh3ll