Notice: Undefined variable: router in G:\projects\beta.api.edutalk.edu.vn\routes\educenter.php on line 19

Fatal error: Uncaught Error: Call to a member function post() on null in G:\projects\beta.api.edutalk.edu.vn\routes\educenter.php:19 Stack trace: #0 {main} thrown in G:\projects\beta.api.edutalk.edu.vn\routes\educenter.php on line 19