Mussa:

[[ errors.first_name[0] ]]

First name is required.

[[ errors.last_name[0] ]]

Last name is required.

[[ errors.screen_name[0] ]]

Screen name is required.

Screen name must have at least 4 characters.

[[ (errors.email ? errors.email[0] : errors.username[0]) ]]

Email is required.

This email is invalid.

[[ errors.password1[0] ]]

Password is required.

Password must have at least 8 characters.

Your password must cannot contain only numbers

[[ errors.password2[0] ]]

Your password confirmation must match with password