Fatal error: Uncaught Twilio\Exceptions\TwilioException: SSL certificate problem: unable to get local issuer certificate in C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Http\BearerToken\OrgsTokenManager.php:52 Stack trace: #0 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\AuthStrategy\TokenAuthStrategy.php(56): Twilio\Http\BearerToken\OrgsTokenManager->fetchToken(Object(Twilio\Rest\Client)) #1 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\AuthStrategy\TokenAuthStrategy.php(67): Twilio\AuthStrategy\TokenAuthStrategy->fetchToken(NULL) #2 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Http\CurlClient.php(110): Twilio\AuthStrategy\TokenAuthStrategy->getAuthString() #3 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Http\CurlClient.php(26): Twilio\Http\CurlClient->options('GET', 'https://preview...', Array, Array, Array, '', '', 60, Object(Twilio\AuthStrategy\TokenAuthStrategy)) #4 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Base\BaseClient.php(212): Twilio\Http\CurlClient->request('GET', 'https://preview...', Array, Array, Array, '', '', NULL, Object(Twilio\AuthStrategy\TokenAuthStrategy)) #5 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Domain.php(63): Twilio\Base\BaseClient->request('GET', 'https://preview...', Array, Array, Array, '', '', NULL) #6 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Version.php(56): Twilio\Domain->request('GET', 'Organizations/s...', Array, Array, Array, NULL, NULL, NULL) #7 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Version.php(188): Twilio\Version->request('GET', 'Organizations/s...', Array, Array, Array, NULL, NULL, NULL) #8 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Rest\PreviewIam\Versionless\Organization\UserList.php(150): Twilio\Version->page('GET', '//scim/Users', Array, Array, Array) #9 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Rest\PreviewIam\Versionless\Organization\UserList.php(118): Twilio\Rest\PreviewIam\Versionless\Organization\UserList->page(Object(Twilio\Values), 'Twilio\\Values\\N...') #10 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Rest\PreviewIam\Versionless\Organization\UserList.php(92): Twilio\Rest\PreviewIam\Versionless\Organization\UserList->stream(Array, NULL, NULL) #11 C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\example\orgs_api_example.php(17): Twilio\Rest\PreviewIam\Versionless\Organization\UserList->read() #12 {main} thrown in C:\xampp\htdocs\hannoole\POS\vendor\twilio\sdk\src\Twilio\Http\BearerToken\OrgsTokenManager.php on line 52