Fatal error: Uncaught TypeError: Argument 1 passed to globalunit\logic\BaiduiLogic::detectFace() must be of the type string, null given, called in /www/wwwroot/tianxin/public/index.php on line 78 and defined in /www/wwwroot/tianxin/public/index.php:110 Stack trace: #0 /www/wwwroot/tianxin/public/index.php(78): globalunit\logic\BaiduiLogic->detectFace() #1 /www/wwwroot/tianxin/public/index.php(228): globalunit\logic\BaiduiLogic->faceRegister() #2 {main} thrown in /www/wwwroot/tianxin/public/index.php on line 110