PHP8-Fehler im CourseDate-Model
Warning: Attempt to read property "id" on null in lib/models/CourseDate.class.php on line 124
Warning: Attempt to read property "id" on null in lib/models/CourseDate.class.php on line 130
Warning: Attempt to read property "id" on null in lib/models/CourseDate.class.php on line 132
Warning: Attempt to read property "id" on null in lib/models/CourseDate.class.php on line 133