Warning: Undefined variable $CFG in C:\Apache24\htdocs\moodle\grade\report\user\classes\external\user.php on line 35

Warning: Attempt to read property "dirroot" on null in C:\Apache24\htdocs\moodle\grade\report\user\classes\external\user.php on line 35

Warning: require_once(/grade/lib.php): Failed to open stream: No such file or directory in C:\Apache24\htdocs\moodle\grade\report\user\classes\external\user.php on line 35

Fatal error: Uncaught Error: Failed opening required '/grade/lib.php' (include_path='.;C:\php\pear') in C:\Apache24\htdocs\moodle\grade\report\user\classes\external\user.php:35 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\moodle\grade\report\user\classes\external\user.php on line 35