{"id":18713671,"date":"2025-11-10T13:43:45","date_gmt":"2025-11-10T13:43:45","guid":{"rendered":"https:\/\/wordpress.org\/support\/topic\/site-kit-encountered-an-error-140\/"},"modified":"2025-11-10T13:55:43","modified_gmt":"2025-11-10T13:55:43","slug":"site-kit-encountered-an-error-140","status":"publish","type":"topic","link":"https:\/\/wordpress.org\/support\/topic\/site-kit-encountered-an-error-140\/","title":{"rendered":"Site Kit encountered an error"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Hello!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It&#8217;s been weeks now, error:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cannot read properties of undefined (reading &#8216;MutationObserver&#8217;) in Header in SettingsApp in withRouter(SettingsApp) in Router in HashRouter in RestoreSnapshots in ErrorHandler in ThemeProvider in StrictMode in Root<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">image: <a href=\"https:\/\/imgur.com\/a\/CEyOTe7\">https:\/\/imgur.com\/a\/CEyOTe7<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Just to be 100% clear, i\u2019ve updated the plugin (didn\u2019t do anything else in terms of adding plugins, changing css, etc.) and it broke, i\u2019ve reverted through a website backup it worked, i\u2019ve updated again, it broke again.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" src=\"https:\/\/wordpress.org\/d0348f4a-bd98-4623-90f8-53d6f8f73725\" alt=\"\" \/><\/figure>\n","protected":false},"template":"","class_list":["post-18713671","topic","type-topic","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/18713671","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":3,"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/18713671\/revisions"}],"predecessor-version":[{"id":18713709,"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/18713671\/revisions\/18713709"}],"wp:attachment":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/media?parent=18713671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}