Title: Critical CSS generation error
Last modified: March 23, 2025

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# Critical CSS generation error

 *  Resolved [fletchdezeeuw](https://wordpress.org/support/users/fletchdezeeuw/)
 * (@fletchdezeeuw)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/critical-css-generation-error/)
 * Received the following message on my website when Jetpack tried to generate a
   critical CSS and was directed to support:
 * Error: HTTP error 503 on URL [https://phonecasescanada.com/privacy-policy/?jb-generate-critical-css=1742762961930](https://phonecasescanada.com/privacy-policy/?jb-generate-critical-css=1742762961930)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Support [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * (@erania-pinnera)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/critical-css-generation-error/#post-18383729)
 * Hi there, [@fletchdezeeuw](https://wordpress.org/support/users/fletchdezeeuw/),
 * Errors 503 or similar usually indicate that there is an issue happening on the
   server’s end.
 * Could you please reach out to your host and report this error to them? You can
   ask them to ask to check your server logs for detailed error messages. They should
   be able to fix it 🙂
 * Let us know how it goes!
 *  Thread Starter [fletchdezeeuw](https://wordpress.org/support/users/fletchdezeeuw/)
 * (@fletchdezeeuw)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/critical-css-generation-error/#post-18383943)
 * Thank you, Stef. The issue has resolved itself, but I continually receive 503
   errors and messages regarding being unable to connect to the database. I upgraded
   from a lower-tier managed WordPress plan to the “ultimate” plan a couple of weeks
   ago because of that issue, so it’s disappointing. This is a growing e-commerce
   website. Anyway, it may be time to contact support. It’s possible it’s a plugin-
   incompatibility problem. Last I checked, the website was functioning reasonably
   well, so keep our fingers crossed. Thanks for your reply!
 *  Plugin Support [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * (@erania-pinnera)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/critical-css-generation-error/#post-18384150)
 * Hi there, [@fletchdezeeuw](https://wordpress.org/support/users/fletchdezeeuw/),
 * I am sorry to hear you’re struggling a little with those errors – I feel how 
   annoying they can be when you have a growing business thriving!
 * I’d recommend talking this through with your host, since 503 are in fact server-
   related symptoms. If you ever see an issue involving Jetpack, please don’t hesitate
   to get in touch in us: we’re happy to cooperate with your host to get them fixed
   🙂 
   Crossing my fingers, and keep us posted!
 *  Plugin Support [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * (@erania-pinnera)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/critical-css-generation-error/#post-18396837)
 * Hey [@fletchdezeeuw](https://wordpress.org/support/users/fletchdezeeuw/),
 * Do you have updates about that, do you still need help? We usually close inactive
   threads after one week of no movement, but we want to make sure we’re all set
   before marking it as solved. Thanks!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Critical CSS generation error’ is closed to new replies.

 * ![](https://ps.w.org/jetpack-boost/assets/icon.svg?rev=2818794)
 * [Jetpack Boost - Website Speed, Performance and Critical CSS](https://wordpress.org/plugins/jetpack-boost/)
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 * 4 replies
 * 2 participants
 * Last reply from: [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * Last activity: [1 year, 2 months ago](https://wordpress.org/support/topic/critical-css-generation-error/#post-18396837)
 * Status: resolved