wizard has problem

I get the following error:
Parse error: syntax error, unexpected end of file in /var/www/html/wordpress/wp-content/plugins/wpenhance/wp-enhance.php on line 538
And wordpress say :
Plugin could not be activated because it triggered a fatal error.
I googled for this error and I find the following codes are wrong:

{?>
Or
<?php }

Question is how can i solve this problem?

https://ww.wp.xz.cn/plugins/network-sites-counts-dashboard-widget/