Fatal error: Uncaught Error: Class "ProtobufMessage" not found in /home/wladimir/public_html/whats/src/libaxolotl-php/protocol/pb_proto_WhisperTextProtocol.php:11 Stack trace: #0 /home/wladimir/public_html/whats/src/libaxolotl-php/protocol/PreKeyWhisperMessage.php(4): require_once() #1 /home/wladimir/public_html/whats/src/libaxolotl-php/SessionCipher.php(26): require_once('/home/wladimir/...') #2 {main} thrown in /home/wladimir/public_html/whats/src/libaxolotl-php/protocol/pb_proto_WhisperTextProtocol.php on line 11