Fatal error: Class ‘DB’ not found in /home/myairline/public_html/phpvms/core/common/SettingsData.class.php on line 28
How to fix:
Navigate towards /phpvms/core/local.config.php, where you then open that file with your text or code editor program and then completely delete everything in it. After saving and closing, you should check that the file size is absolutely zero.