Fatal error: Uncaught Error: Class 'Viber\Api\Entity' not found in /var/www/biznesugry.rf/data/vendor/bogdaan/viber-bot-php/src/Api/Keyboard/Button.php:18 Stack trace: #0 {main} thrown in /var/www/biznesugry.rf/data/vendor/bogdaan/viber-bot-php/src/Api/Keyboard/Button.php on line 18