Fatal error: Uncaught Error: Class "phpseclib3\Crypt\EC\Curves\sect409r1" not found in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\composer\a71a596e\phpseclib-phpseclib-89bfb45\phpseclib\Crypt\EC\Curves\nistb409.php:18 Stack trace: #0 {main} thrown in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\composer\a71a596e\phpseclib-phpseclib-89bfb45\phpseclib\Crypt\EC\Curves\nistb409.php on line 18