Cabal Rider PH Registration Error

[toyits]

Have u Experience error with some specified account, states some special characters blah blah... but
My password and username is correct and repeat it 3 times
but still same result

but when i try registering another account.. it registered successfully..

can anyone pls help. T_T.
Thanks in advance..

A simple help and advice is very much acppreciated.. tnks