Fatal error: Out of memory (allocated 6291456) (tried to allocate 32768 bytes) in D:\www\moodle3\grade\report\grader\lib.php on line 429

Fatal error: Out of memory (allocated 6291456) (tried to allocate 16384 bytes) in D:\www\moodle3\lib\dml\mysqli_native_moodle_database.php on line 600