Title: Plugin activation causing 503 error
Last modified: May 7, 2025

---

# Plugin activation causing 503 error

 *  Resolved [melindahaw](https://wordpress.org/support/users/melindahaw/)
 * (@melindahaw)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/plugin-activation-causing-503-error/)
 * Hi there,
 * Orders placed on our website using the WooCommerce Square plugin were failing
   with the message “There was an error processing your order. Please check for 
   any changes in your payment method and review your order history before placing
   the order again”. I figured this may be due to the plugin and WordPress version
   being outdated, so I proceeded in updating all plugins, WordPress version and
   WooCommerce version to the latest.
 * After the updates, everything is working fine apart from the WooCommerce Square
   plugin. I cannot activate this plugin with out getting a 503 error on the /wp-
   admin pages, cart page and checkout page. I then have to manually deactivate 
   the plugin via cPanel. I have also tried uninstalling and reinstalling the plugin.
   Are you able to help determine why we are getting a 503 error?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fplugin-activation-causing-503-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Mahfuzur Rahman](https://wordpress.org/support/users/mahfuzurwp/)
 * (@mahfuzurwp)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/plugin-activation-causing-503-error/#post-18454123)
 * Hi [@melindahaw](https://wordpress.org/support/users/melindahaw/),
 * Thanks for sharing those details, great job narrowing it down.
 * A 503 error generally points to a server-side issue, such as the server being
   temporarily unavailable or overloaded. In this case, since the error only appears
   when the WooCommerce Square plugin is active, it’s possible the plugin is triggering
   something on the server—like a timeout, memory spike, or a conflict with another
   plugin or theme.
 * I’ve tested the latest version of the Square plugin on a clean site, but wasn’t
   able to reproduce the 503 error. That suggests it may be specific to your environment
   or setup.
 * If you haven’t already, I’d recommend checking your server’s error logs (via 
   your hosting control panel or asking your host) for clues. You could also try
   a conflict test by switching to a default theme like Storefront and disabling
   other plugins temporarily to isolate what might be interacting with Square.
 * Thank you. Let us know what you find out!
 *  Thread Starter [melindahaw](https://wordpress.org/support/users/melindahaw/)
 * (@melindahaw)
 * [1 year ago](https://wordpress.org/support/topic/plugin-activation-causing-503-error/#post-18462593)
 * [@mahfuzurwp](https://wordpress.org/support/users/mahfuzurwp/) we contacted the
   host and narrowed it down to an “unfixable” server configuration or server resource
   issue and will be migrating it to a new server where the issue is resolved.
 *  Plugin Support [shahzeen(woo-hc)](https://wordpress.org/support/users/shahzeenfarooq/)
 * (@shahzeenfarooq)
 * [1 year ago](https://wordpress.org/support/topic/plugin-activation-causing-503-error/#post-18462885)
 * Hi there!
   Thanks for the update, and I’m glad to hear you were able to narrow
   the issue down with your hosting provider. Migrating to a new server where the
   problem is resolved sounds like a solid step forward.When you have a moment, 
   we’d appreciate it if you could share your experience by leaving a review for
   the **WooCommerce Square** plugin here:👉 [https://wordpress.org/support/plugin/woocommerce-square/reviews/](https://wordpress.org/support/plugin/woocommerce-square/reviews/)
 * Your feedback helps us improve and also supports other users in the community.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Plugin activation causing 503 error’ is closed to new replies.

 * ![](https://ps.w.org/woocommerce-square/assets/icon-256x256.png?rev=3234354)
 * [WooCommerce Square](https://wordpress.org/plugins/woocommerce-square/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-square/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/woocommerce-square/)
 * [Active Topics](https://wordpress.org/support/plugin/woocommerce-square/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-square/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woocommerce-square/reviews/)

 * 3 replies
 * 3 participants
 * Last reply from: [shahzeen(woo-hc)](https://wordpress.org/support/users/shahzeenfarooq/)
 * Last activity: [1 year ago](https://wordpress.org/support/topic/plugin-activation-causing-503-error/#post-18462885)
 * Status: resolved