Fatal error: Uncaught exception 'OAuth\Common\Http\Exception\TokenResponseException' with message 'You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead.' in C:\xampp\htdocs\vendor\lusitanian\oauth\src\OAuth\Common\Http\Client\StreamClient.php:73 Stack trace: #0 C:\xampp\htdocs\vendor\lusitanian\oauth\src\OAuth\OAuth1\Service\AbstractService.php(52): OAuth\Common\Http\Client\StreamClient->retrieveResponse(Object(OAuth\Common\Http\Uri\Uri), Array, Array) #1 C:\xampp\htdocs\phpbb\auth\provider\oauth\oauth.php(283): OAuth\OAuth1\Service\AbstractService->requestRequestToken() #2 C:\xampp\htdocs\phpbb\auth\auth.php(949): phpbb\auth\provider\oauth\oauth->login('', '') #3 C:\xampp\htdocs\includes\functions.php(2314): phpbb\auth\auth->login('', '', false, 1, 0) #4 C:\xampp\htdocs\posting.php(411): login_box('', 'You need to log...') #5 {main} thrown in C:\xampp\htdocs\vendor\lusitanian\oauth\src\OAuth\Common\Http\Client\StreamClient.php on line 73