title: 500 Server Error on Wordpress Sites with Plesk today 9/28/2021
body: <p>FYI - Plesk released an update that may cause your sites to show 500 Server Error as of today 9/28/2021. Here is the temporary fix while they are working on a permanent fix. Happened to me this morning and ALL my sites on AWS on Plesk were getting the server error. Hope helps all.</p>
  <p>cause: <a href="https://i.stack.imgur.com/c2btn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/c2btn.png" alt="enter image description here" /></a></p>
  <p>Here is there resolution:
  <a href="https://support.plesk.com/hc/en-us/articles/4407366133906-Website-suddenly-started-to-show-500-error-AH10292-Invalid-proxy-UDS-filename" rel="nofollow noreferrer">https://support.plesk.com/hc/en-us/articles/4407366133906-Website-suddenly-started-to-show-500-error-AH10292-Invalid-proxy-UDS-filename</a></p>
  <p>Worked for me. All my sites back up.</p>