The issue is fixed by our developers. The changes will be included in the next version of the wpForo plugin. 

I am unable to use the Recent Topics and Recent Posts widgets they both result in errors when setting up the widgets.

Here are all the errors I get when trying to set them up in the WordPress backend:

The "wpforo_recent_posts" block was affected by errors and may not function properly. Check the developer tools for more details.

There was an error. Cannot read properties of undefined (reading 'hasOwnProperty')

Here are the errors from the error.log:

Fatal error: Uncaught Error: Call to a member function tree()on null in/home/website-name/public_html/wp-content/plugins/wpforo/widgets/RecentPosts.php:266

Stack Trace

1.	wpforo\widgets\RecentPosts->form(Array)/home/website-name/public_html/wp-includes/rest-api/endpoints/class-wp-rest-widget-types-controller.php:578
2.	WP_REST_Widget_Types_Controller->get_widget_form(Object(wpforo\widgets\RecentPosts), Array)/home/website-name/public_html/wp-includes/rest-api/endpoints/class-wp-rest-widget-types-controller.php:517
3.	WP_REST_Widget_Types_Controller->encode_form_data(Object(WP_REST_Request))/home/cxocommunities/public_html/wp-includes/rest-api/class-wp-rest-server.php:1292
4.	WP_REST_Server->respond_to_request(Object(WP_REST_Request), '/wp/v2/widget-t...', Array, NULL)/home/website-name/public_html/wp-includes/rest-api/class-wp-rest-server.php:1125
5.	WP_REST_Server->dispatch(Object(WP_REST_Request))/home/website-name/public_html/wp-includes/rest-api/class-wp-rest-server.php:439
6.	/home/website-name in /home/website-name/public_html/wp-content/plugins/wpforo/widgets/RecentPosts.php on line 266

I get the same set of errors for both Recent Posts and Recent Topics.

I have reinstalled wp-foro and disabled all other plugins with no success.

Any help would be greatly appreciated

They have been set up as a super admin the whole time. I am struggling to see what the issue is.

Are they aware that it's a network setup? They must go to the network admin to install plugins/edit files.

I have logged in using the details provided to your developers and have no issues.

https://intelligentedu.tech/wp-admin/network/ - network admin dashboard here you can edit and install plugins

https://intelligentedu.tech/forum-test/wp-admin/ - where wpForo is installed and where the recent topics and posts widgets are broken

The same applies to this case. You need to set the user role as Super Admin, not just Admin.

I have made a new user for them to use, info sent via email.

The developers still cannot ann/edit any plugins.

They should have access to the plugin file editor now.

Please enable the plugin editing feature and let us know. So, the developers will be able to review the issue.

For more information, see this article:  https://www.ionos.com/community/websites-ecommerce/wordpress/activate-wordpress-theme-and-plug-in-editor/

Email has been sent.

We don't find such an issue on our test websites. Could you please send the admin login details to infogvectors.com email address? I'll ask the developers to check the issue for you.