Title: Plugin conflict
Last modified: October 19, 2022
---
# Plugin conflict
* [june01](https://wordpress.org/support/users/june01/)
* (@june01)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/)
* Hi,
I have a custom post type with custom taxonomies created using pods plugin.
To filter based on these taxonomies, I am using the plugin WordPress Meta Data
and Taxonomies Filter (MDTF). I also have contact form 7 plugin installed.
* I didn’t have any issues until the update to cf7 version 5.5.5. Now the filter
always returns no result.
version 5.5.4 was working just fine.
* You can read more about these issue in [this post](https://wordpress.org/support/topic/filter-not-working-anymore-2/).
* I’ve contacted the filter plugin support first because I thought something is
wrong with their plugin, but after investigating further, it seems that the latest
update of contact form 7 is causing this problem.
* I hope you can help me with this.
- This topic was modified 3 years, 7 months ago by [june01](https://wordpress.org/support/users/june01/).
- This topic was modified 3 years, 7 months ago by [june01](https://wordpress.org/support/users/june01/).
Viewing 11 replies - 1 through 11 (of 11 total)
* Plugin Author [Takayuki Miyoshi](https://wordpress.org/support/users/takayukister/)
* (@takayukister)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16116622)
* Where can we see the website in question?
* Thread Starter [june01](https://wordpress.org/support/users/june01/)
* (@june01)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16117314)
* You can find my testing website [here](http://wppress.epizy.com/filter/).
* When you choose “Gallery” from the dropdown and then press filter, no results
are found, but there are custom posts classified as gallery.
I have the latest
version installed of cf7.
* When I revert to later versions and without changing anything else, it’s going
to work and show me results.
* Plugin Author [Takayuki Miyoshi](https://wordpress.org/support/users/takayukister/)
* (@takayukister)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16117698)
* > but after investigating further, it seems that the latest update of contact
> form 7 is causing this problem
* Why do you think so?
* Thread Starter [june01](https://wordpress.org/support/users/june01/)
* (@june01)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16117755)
* I’ve been using the same three plugins for a long time with no issues on my main
website, but suddenly the filter stopped working. I have the latest versions
installed.
* But my test website was out of date, so I checked it there.
– old versions (
wp,cf7,filter,pods) works fine – update wp still no issue – update filter plugin,
no issue – update cf7, filter does not work anymore. – I checked each version
of cf7 and the issue appears using version 5.5.5 and later – cf7 version 5.5.4
and below are working fine – updating pods plugin or keeping it old does not
change the outcome. Therefore, I think a change in cf7 version 5.5.5 caused the
conflict.
* Plugin Author [Takayuki Miyoshi](https://wordpress.org/support/users/takayukister/)
* (@takayukister)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16120576)
* I’m not sure about that.
* In the first place, is it really a problem for you? If so, why?
* The current version of Contact Form 7 is [5.6.4](https://contactform7.com/2022/10/19/contact-form-7-564/).
Why do you think you need to test with such outdated versions like 5.5.5 now?
* Thread Starter [june01](https://wordpress.org/support/users/june01/)
* (@june01)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16121086)
* Yes, it’s a huge problem. My filter is broken. I have more than thousand posts
and visitors can’t use the filter feature anymore because it will **always**
return ‘no result found’.
* I know about the current version and I have it installed in my actual live website,
which is always up-to-date. But the latest version is breaking the filter.
* > Why do you think you need to test with such outdated versions like 5.5.5 now?
* To explain the issue again:
I have a live website (not the testing one linked
in an earlier post), where visitors can filter based on custom taxonomies. It’s
an important feature in my website. I’ve made it using pods plugin and mdtf.
I also have cf7 installed and created multiple forms with it. Everything was
working fine. Until some days ago, I realized that it’s not working anymore,
and it always returns no result found.
* I started investigation the issue:
– deactivated all plugins and reactivated
one by one. I’ve found out that cf7 was causing the issue. – to investigate further
without the fear of breaking my website I moved to my test site which I haven’t
used for a very long time and all plugins are out of date. With these outdated
plugins, the filter was working. – I updated WordPress core, pods and mdtf and
kept cf7 old, the filter was still working. – So I updated cf7 to see which version
first made the problem, and it was 5.5.5. The problem started there. This and
any later version breaks the filter. Older versions are working fine.
* I don’t want to use the outdated version in my website, but it’s easier to investigate
when you know when exactly it happened first.
Some changes made in the version
5.5.5 are conflicting with the filter plugin.
* Links:
– [Test website](http://wppress.epizy.com/filter/?i=1) where you can
filter based on ‘Gallery’. I have about 2-3 posts, but it will show nothing because
latest version of cf7 is currently installed. – [Post ](https://wordpress.org/support/topic/filter-not-working-anymore-2/)
notifying the mdtf plugin developer about the issue, and I have linked my live
website there as well if you want to check it. On my live website, I even get
this error:
* `WP_Error Object ( [errors] => Array ( [invalid_taxonomy] => Array ( [0] => فئة
غير صالحة. ) ) [error_data] => Array ( ) [additional_data:protected] => Array())`
- This reply was modified 3 years, 7 months ago by [june01](https://wordpress.org/support/users/june01/).
* Thread Starter [june01](https://wordpress.org/support/users/june01/)
* (@june01)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16131866)
* I tested a bit more, and I think changes made [here ](https://github.com/takayukister/contact-form-7/commit/d237de13c59f68e28c4992491d2ced969a74872d)
are causing the issue.
* [songoo](https://wordpress.org/support/users/songoo/)
* (@songoo)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16132083)
* Hello, I have wordpress with Avada theme, using contact 7 form a lot. Tried to
upgrade to 5.6.4 from 5.4. But then all my pages ended up as 404 for some reason.
I tried to rollback contact form 7 plugin version down and down to find out which
plugin version started this problem and it was 5.5.5. (so at the moment I am
at 5.5.4 which works).
* Its pure guess, but I also think issue is caused by this “**Block editor: Ensures
the editor loads the contact forms list by creating inline script on the server
side.**” somehow.
Another weird effect is that 404 only affect main pages, it
does not affect any translated pages [http://www.page.com/en/anything](http://www.page.com/en/anything).
* Apart from 404 there is no error in console/wp admin or anywhere, its like some
redirecting issue, I wish I could add some more details but do not know how.
- This reply was modified 3 years, 7 months ago by [songoo](https://wordpress.org/support/users/songoo/).
* [songoo](https://wordpress.org/support/users/songoo/)
* (@songoo)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16149100)
* Just a note, I have completely uninstalled contact 7 and installed latest version
anew. But it still broken. Maybe 5.5.5+ were never compatible with some wp versions
but patcher allowed it go higher hmm ?
* [songoo](https://wordpress.org/support/users/songoo/)
* (@songoo)
* [3 years, 7 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16182404)
* UPDATE :
Not really sure how to explain this, but I followed the issue in /block-
editor/block-editor.php to
* ```
WPCF7_ContactForm::find( array(
'posts_per_page' => 20,
) )
```
* When I comment it, page is working when not 404 is shown. Ok so I checked what
this returns and on page.com/en it return cf7 array on page.com it returns cf7
array but with additional first item in it, which has everything empty..
* So I followed into /includes/contact-form.php to **public static function find(
$args = ” )** method. I deleted all contact 7 forms in admin, and even then for
any magic reason $posts = $q->query( $args ); return Post of “page” type, concretely
404 page post. **WTF?** , how can WP_Query() return “page” post type when args
are **[post_type] => wpcf7_contact_form** . And I checked, that args looks good:
`
Array ( [post_status] => any [posts_per_page] => 20 [offset] => 0 [orderby] =
> ID [order] => ASC [post_type] => wpcf7_contact_form )`
* This is absolute mystery, and am a bit afraid is more WP related, why would main
page query with same args return something else on page.com than on page.com/
en .
* [songoo](https://wordpress.org/support/users/songoo/)
* (@songoo)
* [3 years, 6 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16201210)
* I solved it, at least for me, but You would have to do it manually in plugin
files.
* **/wp-content/plugins/contact-form-7/includes/contact-form.php**
* In ‘public static function find( $args = ” ) {‘
* Old code is commented out
* ```
//$q = new WP_Query();
//$posts = $q->query( $args );
$posts = get_posts( $args );
//self::$found_items = $q->found_posts;
self::$found_items = count($posts);
```
* Seems somehow, ‘WP_Query()’ is not safe to use and conflicts with some template
or other plugins stuff or whatewer, also it can return “404 page” type mixed
in query results which just break everything (that was my case).
* [https://github.com/takayukister/contact-form-7/issues/1001](https://github.com/takayukister/contact-form-7/issues/1001)
- This reply was modified 3 years, 6 months ago by [songoo](https://wordpress.org/support/users/songoo/).
Viewing 11 replies - 1 through 11 (of 11 total)
The topic ‘Plugin conflict’ is closed to new replies.
* 
* [Contact Form 7](https://wordpress.org/plugins/contact-form-7/)
* [Frequently Asked Questions](https://wordpress.org/plugins/contact-form-7/#faq)
* [Support Threads](https://wordpress.org/support/plugin/contact-form-7/)
* [Active Topics](https://wordpress.org/support/plugin/contact-form-7/active/)
* [Unresolved Topics](https://wordpress.org/support/plugin/contact-form-7/unresolved/)
* [Reviews](https://wordpress.org/support/plugin/contact-form-7/reviews/)
* 12 replies
* 3 participants
* Last reply from: [songoo](https://wordpress.org/support/users/songoo/)
* Last activity: [3 years, 6 months ago](https://wordpress.org/support/topic/plugin-conflict-375/#post-16201210)
* Status: not resolved