laravel hosting on wamp

I have followed a tutorial here @ https://github.com/petehouston/laravel-deploy-on-shared-hosting on how to install laravel application on a shared hosting and also here @ https://medium.com/laravel-news/the-simple-guide-to-deploy-laravel-5-application-on-shared-hosting-1a8d0aee923e but have come to a difficult when I visit the localhost here is the error dump please help `

FatalErrorException in Encrypter.php line 100:
Call to undefined function openssl_decrypt()
in Encrypter.php line 100
at FatalErrorException->__construct() in HandleExceptions.php line 133
at HandleExceptions->fatalExceptionFromError() in HandleExceptions.php line 118
at HandleExceptions->handleShutdown() in HandleExceptions.php line 0
at Encrypter->decrypt() in EncryptCookies.php line 95
at EncryptCookies->decryptCookie() in EncryptCookies.php line 76
at EncryptCookies->decrypt() in EncryptCookies.php line 59
at EncryptCookies->handle() in Pipeline.php line 136
at call_user_func_array:{C:\wamp\cruitement\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php:136}() in Pipeline.php line 136
at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
at call_user_func:{C:\wamp\cruitement\vendor\laravel\framework\src\Illuminate\Routing\Pipeline.php:32}() in Pipeline.php line 32
at Pipeline->Illuminate\Routing\{closure}() in Pipeline.php line 103
at call_user_func:{C:\wamp\cruitement\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php:103}() in Pipeline.php line 103
at Pipeline->then() in Router.php line 726
at Router->runRouteWithinStack() in Router.php line 699
at Router->dispatchToRoute() in Router.php line 675
at Router->dispatch() in Kernel.php line 246
at Kernel->Illuminate\Foundation\Http\{closure}() in Pipeline.php line 52
at call_user_func:{C:\wamp\cruitement\vendor\laravel\framework\src\Illuminate\Routing\Pipeline.php:52}() in Pipeline.php line 52
at Pipeline->Illuminate\Routing\{closure}() in CheckForMaintenanceMode.php line 44
at CheckForMaintenanceMode->handle() in Pipeline.php line 136
at call_user_func_array:{C:\wamp\cruitement\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php:136}() in Pipeline.php line 136
at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
at call_user_func:{C:\wamp\cruitement\vendor\laravel\framework\src\Illuminate\Routing\Pipeline.php:32}() in Pipeline.php line 32
at Pipeline->Illuminate\Routing\{closure}() in Pipeline.php line 103
at call_user_func:{C:\wamp\cruitement\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php:103}() in Pipeline.php line 103
at Pipeline->then() in Kernel.php line 132
at Kernel->sendRequestThroughRouter() in Kernel.php line 99
at Kernel->handle() in index.php line 54
at {main}() in index.php line 0

can any spot what i missing please thanks in advance please note all the extensions are enabled on my serve do't know what the problem is if Laravel has a tutorial on this please point to the right direction