opensupports/server/data/ERRORS.php

<?php
class ERRORS {
    const INVALID_CREDENTIALS = 'User or password is not defined';
    const SESSION_EXISTS = 'User is already logged in';
    const NO_PERMISSION = 'You have no permission to access';
    const INVALID_TITLE = 'Invalid title';
    const INVALID_CONTENT = 'Invalid content';
    const INVALID_EMAIL = 'Invalid email';
    const INVALID_PASSWORD = 'Invalid password';
    const INVALID_NAME = 'Invalid name';
    const INVALID_SETTING = 'Invalid setting';
    const INVALID_DEPARTMENT = 'Invalid department';
    const INVALID_TICKET = 'Invalid ticket';
    const INIT_SETTINGS_DONE = 'Settings already initialized';
    const INVALID_OLD_PASSWORD = 'Invalid old password';
}