[Resolved] Critical error when trying to access appearance/customize

[Author]

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[thomasB-12]

I am trying to: access appearance/customize

Link to a page where the issue can be seen: hidden link

I expected to see: the customize page

Instead, I got: notice that there has been a critical error on website. This triggers the following message from the website:

When seeking help with this issue, you may be asked for some of the following information:
WordPress version 5.8.2
Current theme: Astra (version 3.7.6)
Current plugin: Toolset Forms (version 2.6.12)
PHP version 7.4.24

Error Details
=============
An error of type E_ERROR was caused in line 376 of the file /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-content/plugins/cred-frontend-editor/vendor/toolset/toolset-common/inc/autoloaded/interop/handler/elementor/widgets/view/view.php. Error message: Uncaught Error: Call to undefined method Elementor\Utils::is_ajax() in /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-content/plugins/cred-frontend-editor/vendor/toolset/toolset-common/inc/autoloaded/interop/handler/elementor/widgets/view/view.php:376
Stack trace:
#0 /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-includes/class-wp-hook.php(303): OTGS\Toolset\Common\Interop\Handler\Elementor\ViewWidget->maybe_use_view_elementor_widget_instead()
#1 /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#2 /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-includes/plugin.php(470): WP_Hook->do_action()
#3 /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-content/plugins/wp-views/embedded/inc/wpv-widgets.php(81): do_action()
#4 /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-includes/class-wp-widget.php(534): WPV_Widget->form()
#5 /home/178154.cloudwaysapps.com/uebunjexca/public_html/wp-admin/includes/widgets.php

[Minesh Supporter Languages: English (English ) Timezone: Asia/Kolkata (GMT+05:30)]

Hello. Thank you for contacting the Toolset support.

This is a known issue to us. As you see with the errata page created:
=> https://toolset.com/errata/fatal-error-on-customizer-page-after-updating-to-elementor-3-5/

Please check the following note:

Note that this is a common file included with all Toolset plugins. In the example above the PHP error reports that the particular version of the file is loaded by the Types plugin, and so that is the file we are replacing with the patch. It could be that you need to update the file from a different Toolset plugin (which plugin is loading the file can be determined from the PHP error).

Can you please try to replace the file within all Toolset plugins on the same path and check:

plugins/any-toolset-plugin/vendor/toolset/toolset-common/inc/autoloaded/interop/handler/elementor/widgets/view/view.php on line 376

The file: vendor/toolset/toolset-common/inc/autoloaded/interop/handler/elementor/widgets/view/view.php
- should be available with Toolset Types, Blocks, Forms, Access - Could you please try to replace it within every Toolset plugins.