Wordpress is displaying an error message under my posts

Wordpress is displaying a error message under my posts.
Please fix this for me. (As shown in photo)


Also Wordfence found the following new issues on "".

Alert generated at Wednesday 11th of March 2020 at 11:03:33 AM


See the details of these scan results on your site at: https://creativecastleproductions.net/wp-admin/admin.php?page=WordfenceScan

Critical Problems:

* File contains suspected malware URL: wp-content/cache/page_enhanced/creativecastleproductions.net/2019/10/15/_index_ssl.html

The malicious URL matched

* File contains suspected malware URL: wp-content/cache/page_enhanced/creativecastleproductions.net/author/jprnbp/page/2/_index_ssl.html

The malicious URL matched

* File contains suspected malware URL: wp-content/cache/page_enhanced/creativecastleproductions.net/blog/i-hire-videographer-wedding/_index_ssl.html

The malicious URL matched

* File contains suspected malware URL: wp-content/cache/page_enhanced/creativecastleproductions.net/2019/09/27/_index_ssl.html

The malicious URL matched

Medium Severity Problems:

* The Plugin "Contact Form 7 Skins" needs an upgrade (2.2.1 -> 2.2.2).