Fatal error: Uncaught Error: Class 'think\model\relation\BelongsToMany' not found in D:\website\vendor\topthink\think-orm\src\model\relation\MorphToMany.php:24
Stack trace:
#0 {main}
thrown in D:\website\vendor\topthink\think-orm\src\model\relation\MorphToMany.php on line 24