Fatal error: Uncaught Error: Call to undefined function Symfony\Polyfill\Mbstring\iconv_strpos() in /home/iranadsco/AdvertisingNetwork/vendor/symfony/polyfill-mbstring/Mbstring.php:363 Stack trace: #0 /home/iranadsco/AdvertisingNetwork/vendor/symfony/polyfill-mbstring/bootstrap.php(32): Symfony\Polyfill\Mbstring\Mbstring::mb_strpos(NULL, '/json', 0, 'UTF-8') #1 /home/iranadsco/AdvertisingNetwork/bootstrap/cache/compiled.php(6661): mb_strpos(NULL, '/json') #2 /home/iranadsco/AdvertisingNetwork/bootstrap/cache/compiled.php(3026): Illuminate\Support\Str::contains(NULL, Array) #3 /home/iranadsco/AdvertisingNetwork/bootstrap/cache/compiled.php(3011): Illuminate\Http\Request->isJson() #4 /home/iranadsco/AdvertisingNetwork/bootstrap/cache/compiled.php(3103): Illuminate\Http\Request->getInputSource() #5 /home/iranadsco/AdvertisingNetwork/bootstrap/cache/compiled.php(2759): Illuminate\Http\Request::createFromBase(Object(Illuminate\Http\Request)) #6 /home/iranadsco/public_html/index.php(62): Illuminate\Http\Request::capture() #7 {m in /home/iranadsco/AdvertisingNetwork/vendor/symfony/polyfill-mbstring/Mbstring.php on line 363