Title: Error after PHP upgrade
Last modified: August 16, 2024

---

# Error after PHP upgrade

 *  [janefriedman](https://wordpress.org/support/users/janefriedman/)
 * (@janefriedman)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/error-after-php-upgrade-2/)
 * After upgrading my site to PHP 8.1 from 8.0, the WordPress dashboard now shows
   the following error:
 * Deprecated: is_dir(): Passing null to parameter #1 ($filename) of type string
   is deprecated in /chroot/home/ace3b3a5/f0691d1627.nxcli.io/html/wp-content/mu-
   plugins/nexcess-mapps/vendor/keycdn/cache-enabler/inc/cache_enabler_disk.class.
   php
 * My host is Nexcess. Is this the kind of error that needs to be fixed by Nexcess
   or KeyCDN?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-after-php-upgrade-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

The topic ‘Error after PHP upgrade’ is closed to new replies.

 * ![](https://ps.w.org/cdn-enabler/assets/icon-256x256.png?rev=2472538)
 * [CDN Enabler](https://wordpress.org/plugins/cdn-enabler/)
 * [Support Threads](https://wordpress.org/support/plugin/cdn-enabler/)
 * [Active Topics](https://wordpress.org/support/plugin/cdn-enabler/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/cdn-enabler/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/cdn-enabler/reviews/)

## Tags

 * [deprecated](https://wordpress.org/support/topic-tag/deprecated/)
 * [php](https://wordpress.org/support/topic-tag/php/)

 * 0 replies
 * 1 participant
 * Last reply from: [janefriedman](https://wordpress.org/support/users/janefriedman/)
 * Last activity: [1 year, 9 months ago](https://wordpress.org/support/topic/error-after-php-upgrade-2/)
 * Status: not resolved