Title: Uncaught ValueError: Unknown format specifier
Last modified: October 14, 2021

---

# Uncaught ValueError: Unknown format specifier

 *  Resolved [movut](https://wordpress.org/support/users/movut/)
 * (@movut)
 * [4 years, 7 months ago](https://wordpress.org/support/topic/uncaught-valueerror-unknown-format-specifier/)
 * Hi!
    After updating PHP to version 8.0. (when publishing new articles) WordPress
   started sending an error notification to the mail. WordPress version 5.8.1 Problematic
   plugin: Simple Sitemap (version 3.5.2) Version of PHP 8.0.3 Bug details: ====
   =============================== Error type E_ERROR occurred on line 23 of file/
   home/m/movut/seo-aspirant.ru/public_html/wp-content/plugins/simple-sitemap/freemius/
   templates/forms/deactivation/retry-skip.php. Error message: Uncaught ValueError:
   Unknown format specifier “Д in /home/m/movut/seo-aspirant.ru/public_html/wp-
   content/plugins/simple-sitemap/freemius/templates/forms/deactivation/retry-skip.
   php:23 =================================== Externally, I do not see any problems
   on the site.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Funcaught-valueerror-unknown-format-specifier%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [David Gwyer](https://wordpress.org/support/users/dgwyer/)
 * (@dgwyer)
 * [4 years, 7 months ago](https://wordpress.org/support/topic/uncaught-valueerror-unknown-format-specifier/#post-14976342)
 * Thanks for reporting. I’ll take a look as soon as I can.
 *  Plugin Author [David Gwyer](https://wordpress.org/support/users/dgwyer/)
 * (@dgwyer)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/uncaught-valueerror-unknown-format-specifier/#post-15033896)
 * I’ve tested Simple Sitemap (free version 3.5.2) on PHP 8.0.12 and haven’t encountered
   any problems as yet. I can’t replicate your particular issue.
 * I’ve asked Freemius support for advice (I use the Freemius platform for plugin
   licensing and upgrades).
 *  Plugin Author [David Gwyer](https://wordpress.org/support/users/dgwyer/)
 * (@dgwyer)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/uncaught-valueerror-unknown-format-specifier/#post-15035423)
 * This issue is apparently to do with translations. I’ll be releasing a new version
   in the next few days which includes a fix for this.
 *  Plugin Author [David Gwyer](https://wordpress.org/support/users/dgwyer/)
 * (@dgwyer)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/uncaught-valueerror-unknown-format-specifier/#post-15044426)
 * FYI – This fix has been included in the latest release.
 *  Thread Starter [movut](https://wordpress.org/support/users/movut/)
 * (@movut)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/uncaught-valueerror-unknown-format-specifier/#post-15045973)
 * Thank you very much!

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Uncaught ValueError: Unknown format specifier’ is closed to new replies.

 * ![](https://ps.w.org/simple-sitemap/assets/icon.svg?rev=1411764)
 * [Simple Sitemap - Create a Responsive HTML Sitemap](https://wordpress.org/plugins/simple-sitemap/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/simple-sitemap/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/simple-sitemap/)
 * [Active Topics](https://wordpress.org/support/plugin/simple-sitemap/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/simple-sitemap/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/simple-sitemap/reviews/)

 * 5 replies
 * 2 participants
 * Last reply from: [movut](https://wordpress.org/support/users/movut/)
 * Last activity: [4 years, 6 months ago](https://wordpress.org/support/topic/uncaught-valueerror-unknown-format-specifier/#post-15045973)
 * Status: resolved