Plugin could not be activated because it triggered a fatal error.
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /wp-content/plugins/maps-marker-pro/maps-marker-pro.php on line 66
If you see the error above when trying to activate Maps Marker Pro, this usually means that the PHP version used on your server is too low.
Maps Marker Pro requires at least PHP 5.6 to run properly, anyway as PHP 5.4 is already outdated and does not receive updates (including security fixes!) anymore since September 2015, we stronlgy recommend to a currently supported PHP version (7.x).
To fix this, please either switch your PHP version through your hosting control panel if possible or contact your hosting provider support to switch the PHP version for you.