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Notice: Undefined index: path in C:\xampp\htdocs\PMIS\lib\classes\Authentication.php on line 3

Warning: require_once(/echo-txt.php): failed to open stream: No such file or directory in C:\xampp\htdocs\PMIS\lib\classes\Authentication.php on line 3

Fatal error: require_once(): Failed opening required '/echo-txt.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\PMIS\lib\classes\Authentication.php on line 3