Fatal error: Uncaught Error: Class "SignedPreKeyStore" not found in /home/wladimir/public_html/whats/src/libaxolotl-php/tests/inmemorysignedprekeystore.php:8 Stack trace: #0 {main} thrown in /home/wladimir/public_html/whats/src/libaxolotl-php/tests/inmemorysignedprekeystore.php on line 8