Corrado

Hi @frank10co
Unfortunately, I can’t solve the problem, and I see that support has no intention of fixing a problem that affects several sites.

I opened this thread two weeks ago. I provided all the information I have, and they keep asking for information just to show they’ve responded to the thread.
I’ve just wasted a lot of time.

My solution is to change the plugin.
That way, I can get rid of a very problematic plugin.

Regards

Dear Support,
The problem goes away if I disable TEC, not Yoast.

It’s been several days, and I’m spending a lot of time answering your questions, but it doesn’t seem like you’re far from solving the problem.

Are you able to solve the problem or not?
Please answer me honestly.

If you don’t find a solution soon, I’ll delete TEC and install another plugin.

Thanks

Hi Support,
What do I mean by full stack trace?
What files do you need? Let me know in detail what I need to do.

Why don’t you try with Theme and Version: GeneratePress 3.6.0?

The procedure you’re suggesting for testing for conflicts seems really useless, since I did a much more thorough analysis in the first post!

Below is more data:

WordPress
Versione WordPress 6.8.2
Lingua it-IT
Charset UTF-8
Limite memoria 512M

PHP
Versione PHP 8.2.29
PHP SAPI cgi-fcgi
Limite memoria 768M
Memoria in uso 108 MB
Tempo di esecuzione massima 120 (predefinito) - è dinamico
open_basedir Off
Shell (exec) È supportato
Shell Exec Zip È supportato
Estensione Suhosin Disabilitato
Architettura 64-bit
File dei log degli errori php_errorlog

MySQL
Versione 8.0.41
Charset utf8mb4
Timeout di attesa 60

This is the new php_errorlog:
https://drive.google.com/file/d/18z0wrFeW3OO7a1hCeSddCy2dQhh-P10A/view?usp=sharing

This user also had the same error:
https://ww.wp.xz.cn/support/topic/php-error-log-issue/

Let me give you a quick recap:


I’m experiencing persistent PHP warnings on a live site using The Events Calendar. These warnings are being logged every minute (now it is no longer every minute but it varies and you can see it from the log I provided you), and they appear to be triggered during background tasks, possibly during scheduled actions (Action Scheduler), particularly when interacting with Yoast SEO’s indexables.

Here are the exact error messages from the php_error.log:

PHP Warning: Undefined property: WP_Post_Type::$term_id in /wp-includes/taxonomy.php on line 1720
PHP Warning: Undefined property: WP_Error::$taxonomy in /wp-content/plugins/wordpress-seo/src/builders/indexable-hierarchy-builder.php on line 342
After hours of debugging and disabling plugins one by one, I was able to confirm that these warnings only appear when The Events Calendar is active. Disabling it eliminates the warnings entirely.

Additional insights:

The warnings seem to originate when Yoast SEO tries to build the indexable hierarchy for an object that is likely returned as a WP_Error instead of a valid taxonomy or post type.

Specifically, the post_parent of an Event (or possibly a custom post type created by TEC) seems to be returning a WP_Error, and this is being passed to Yoast’s builder without proper checking.

This likely happens inside a scheduled event triggered via Action Scheduler, since the logs show a new error line every minute, regardless of user interaction.

Further investigation reveals that another user reported the same issue in the past with this error pattern:


[example quoted for context]

PHP Warning: Undefined property: WP_Post_Type::$term_id in taxonomy.php
PHP Warning: Undefined property: WP_Error::$taxonomy in indexable-hierarchy-builder.php
Interestingly, the issue disappears entirely when migrating the same site to a staging environment. My hypothesis is that:

The staging environment has no traffic (so the Action Scheduler does not run),

Or the cron system is disabled (DISABLE_WP_CRON is true),

Or the environment swallows warnings due to error_reporting settings.

Please help me identify and fix the root cause.
Can you verify whether:

A TEC object (post or taxonomy) could be returning a WP_Error during post hierarchy resolution or indexing?

There are known compatibility issues between TEC and Yoast SEO when used with Action Scheduler?

Thanks

Hi Support,

https://drive.google.com/file/d/1rA9zV8pM_RsDHtuYqhy61W-nXp-jg4t7/view?usp=sharing

https://drive.google.com/file/d/1Fejm7eMszyY0X6Pgpnv3i_gDeGHNowkG/view?usp=sharing

Thanks

Hello Support,

1. PHP: 8.2.28
2. WordPress: 6.8.1
3. The Events Calendar: 6.14.0
4. Events Calendar Pro (if using): No
5. Theme and Version: GeneratePress 3.6.0

Thanks!

Thank you for answering.
I have disabled all the css file minification functions.
I tried to disable the cache plugin.
I tried to delete the cache plugin.
I tried to disable all plugins except Complianz.
I tried to change the graphic theme.
I tried to clean the DB with Wp optimize.

Unfortunately, none of these things solve the problem.

I did all these tests on a staging site:
https://www.staging2.beautypencil.it

Thanks in advance.

Ps. your plugin is great and i use it for other sites and it works great.