Fatal error occurred while saving the article

  • When I try to save the article, the page displays the following fatal error. ACF Pro and all plugins, as well as WordPress, are up to date. I haven’t encountered this issue before, so it seems to have occurred after updating one of the plugins.

    Fatal error</b>:  Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, bool given in /xxx/wp-includes/formatting.php:3466
Stack trace:
#0 /xxx/wp-includes/class-wp-hook.php(308): convert_smilies()
#1 /xxx/wp-includes/plugin.php(205): WP_Hook-&gt;apply_filters()
#2 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/fields/class-acf-field-wysiwyg.php(429): apply_filters()
#3 /xxx/wp-includes/class-wp-hook.php(308): acf_field_wysiwyg-&gt;format_value()
#4 /xxx/wp-includes/plugin.php(256): WP_Hook-&gt;apply_filters()
#5 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-hook-functions.php(109): apply_filters_ref_array()
#6 /xxx/wp-includes/class-wp-hook.php(308): _acf_apply_hook_variations()
#7 /xxx/wp-includes/plugin.php(205): WP_Hook-&gt;apply_filters()
#8 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-value-functions.php(172): apply_filters()
#9 /xxx/wp-content/plugins/advanced-custom-fields-pro/pro/fields/class-acf-field-flexible-content.php(889): acf_format_value()
#10 /xxx/wp-includes/class-wp-hook.php(308): acf_field_flexible_content-&gt;format_value()
#11 /xxx/wp-includes/plugin.php(256): WP_Hook-&gt;apply_filters()
#12 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-hook-functions.php(109): apply_filters_ref_array()
#13 /xxx/wp-includes/class-wp-hook.php(308): _acf_apply_hook_variations()
#14 /xxx/wp-includes/plugin.php(205): WP_Hook-&gt;apply_filters()
#15 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-value-functions.php(172): apply_filters()
#16 /xxx/wp-content/plugins/advanced-custom-fields-pro/pro/fields/class-acf-field-repeater.php(414): acf_format_value()
#17 /xxx/wp-includes/class-wp-hook.php(308): acf_field_repeater-&gt;format_value()
#18 /xxx/wp-includes/plugin.php(256): WP_Hook-&gt;apply_filters()
#19 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-hook-functions.php(109): apply_filters_ref_array()
#20 /xxx/wp-includes/class-wp-hook.php(308): _acf_apply_hook_variations()
#21 /xxx/wp-includes/plugin.php(205): WP_Hook-&gt;apply_filters()
#22 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-value-functions.php(172): apply_filters()
#23 /xxx/wp-content/plugins/advanced-custom-fields-pro/pro/fields/class-acf-field-flexible-content.php(889): acf_format_value()
#24 /xxx/wp-includes/class-wp-hook.php(308): acf_field_flexible_content-&gt;format_value()
#25 /xxx/wp-includes/plugin.php(256): WP_Hook-&gt;apply_filters()
#26 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-hook-functions.php(109): apply_filters_ref_array()
#27 /xxx/wp-includes/class-wp-hook.php(308): _acf_apply_hook_variations()
#28 /xxx/wp-includes/plugin.php(205): WP_Hook-&gt;apply_filters()
#29 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/acf-value-functions.php(172): apply_filters()
#30 /xxx/wp-content/plugins/advanced-custom-fields-pro/includes/api/api-template.php(111): acf_format_value()
#31 /xxx/wp-content/plugins/relevanssi/lib/compatibility/acf.php(241): get_field_object()
#32 /xxx/wp-content/plugins/relevanssi/lib/compatibility/acf.php(246): relevanssi_acf_is_parent_excluded()
#33 /xxx/wp-content/plugins/relevanssi/lib/compatibility/acf.php(246): relevanssi_acf_is_parent_excluded()
#34 /xxx/wp-content/plugins/relevanssi/lib/compatibility/acf.php(212): relevanssi_acf_is_parent_excluded()
#35 /xxx/wp-includes/class-wp-hook.php(308): relevanssi_acf_exclude_fields()
#36 /xxx/wp-includes/plugin.php(205): WP_Hook-&gt;apply_filters()
#37 /xxx/wp-content/plugins/relevanssi/lib/common.php(1737): apply_filters()
#38 /xxx/wp-content/plugins/relevanssi/lib/indexing.php(1257): relevanssi_generate_list_of_custom_fields()
#39 /xxx/wp-content/plugins/relevanssi/lib/indexing.php(565): relevanssi_index_custom_fields()
#40 /xxx/wp-content/plugins/relevanssi/lib/indexing.php(824): relevanssi_index_doc()
#41 /xxx/wp-content/plugins/relevanssi/lib/indexing.php(897): relevanssi_publish()
#42 /xxx/wp-includes/class-wp-hook.php(310): relevanssi_insert_edit()
#43 /xxx/wp-includes/class-wp-hook.php(332): WP_Hook-&gt;apply_filters()
#44 /xxx/wp-includes/plugin.php(517): WP_Hook-&gt;do_action()
#45 /xxx/wp-includes/post.php(5436): do_action()
#46 /xxx/wp-includes/post.php(4729): wp_after_insert_post()
#47 /xxx/wp-includes/post.php(4817): wp_insert_post()
#48 /xxx/wp-admin/includes/post.php(439): wp_update_post()
#49 /xxx/wp-admin/post.php(227): edit_post()
#50 {main}
  thrown in <b>/xxx/wp-includes/formatting.php</b> on line  3466

Viewing 1 replies (of 1 total)
  • Plugin Author Mikko Saari

    (@msaari)

    That error is so deep in ACF that it’s hard to say what exactly causes it. There’s some value in your ACF fields that when it’s fed to WP’s convert_smilies() function, there’s a boolean where there should be an array (likely something’s returning false instead of the proper value).

    There are lots of apply_filters there, so this can also be caused by a third-party filter returning an invalid value.

    But the problem seems to be within a WYSIWYG field. Does this happen to all posts, or only a specific post? If this happens to all posts, then I’d go looking for filter functions that can cause this, but if it only happens to a specific post, then it may be something in the WYSIWYG fields of that post.

Viewing 1 replies (of 1 total)
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