Fatal error: Uncaught Error: Class "think\model\Relation" not found in /usr/home/momimeng/domains/dns.ccssoo.ggff.net/public_html/vendor/topthink/think-orm/src/model/relation/BelongsToMany.php:29
Stack trace:
#0 {main}
  thrown in /usr/home/momimeng/domains/dns.ccssoo.ggff.net/public_html/vendor/topthink/think-orm/src/model/relation/BelongsToMany.php on line 29