zszc loader poroblem

Well i just recently installed the loader for zszc typed in my pw and id but when zszc starts it only says pls check id or pw because its wrong??????
but i defenetly typed it in right ????? how does that come????

my brother is using the same loader and does not have this prob whats wrong with mine pls help??????

(i already looked in the loader ini and checked the id and pw its defenetly right?????)

Your id or password is wrong! Maybe you got hacked or someone changed the password.

Try to log-in without or with other loader, if it works, then your loader is broken, try re-downloading.