Fatal error: Uncaught Error: Interface 'JsonSerializable' not found in /home/h290156/public_html/wp-content/plugins/really-simple-ssl-pro/pro/assets/vendor/geoip2/geoip2/src/Model/AbstractModel.php:10
Stack trace:
#0 /home/h290156/public_html/wp-content/plugins/really-simple-ssl-pro/pro/assets/vendor/composer/ClassLoader.php(576): include()
#1 /home/h290156/public_html/wp-content/plugins/really-simple-ssl-pro/pro/assets/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/home/h290156/p...')
#2 [internal function]: Composer\Autoload\ClassLoader->loadClass('GeoIp2\\Model\\Ab...')
#3 /home/h290156/public_html/wp-content/plugins/really-simple-ssl-pro/pro/assets/vendor/geoip2/geoip2/src/Model/Country.php(31): spl_autoload_call('GeoIp2\\Model\\Ab...')
#4 /home/h290156/public_html/wp-content/plugins/really-simple-ssl-pro/pro/assets/vendor/composer/ClassLoader.php(576): include('/home/h290156/p...')
#5 /home/h290156/public_html/wp-content/plugins/really-simple-ssl-pro/pro/assets/vendor/composer/ClassLoader.php(427 in /home/h290156/public_html/wp-content/plugins/really-simple-ssl-pro/pro/assets/vendor/geoip2/geoip2/src/Model/AbstractModel.php on line 10