Fatal error: Uncaught exception 'Braintree\Exception\SSLCertificate' in /home/www/utils/braintree-php-3.22.0/lib/Braintree/Http.php:169 Stack trace: #0 /home/www/utils/braintree-php-3.22.0/lib/Braintree/Http.php(101): Braintree\Http->_doUrlRequest('POST', 'https://api.bra...', '<?xml version="...') #1 /home/www/utils/braintree-php-3.22.0/lib/Braintree/Http.php(42): Braintree\Http->_doRequest('POST', '/merchants/gb6p...', '<?xml version="...') #2 /home/www/utils/braintree-php-3.22.0/lib/Braintree/ClientTokenGateway.php(61): Braintree\Http->post('/merchants/gb6p...', Array) #3 /home/www/utils/braintree-php-3.22.0/lib/Braintree/ClientTokenGateway.php(47): Braintree\ClientTokenGateway->_doGenerate('/client_token', Array) #4 /home/www/utils/braintree-php-3.22.0/lib/Braintree/ClientToken.php(18): Braintree\ClientTokenGateway->generate(Array) #5 /home/ul/application/controllers/signup.php(721): Braintree\ClientToken::generate() #6 [internal function]: Signup->index() #7 /home/ul/system/core/CodeIgniter.php(360): call_user_func_a in /home/www/utils/braintree-php-3.22.0/lib/Braintree/Http.php on line 169