Elementor editor not working for Theme builder parts

Hi,

I have a site (Elementor, Elementor Pro, Polylang, Connect Polylang for Elementor, Hello Elementor theme). I was able to create all the pages in both languages, and the theme builder parts on the default language, but I can’t create translations for the parts, because the editor won’t open up. The console errors are the following:

load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4

   GET https://zicho.hu/?post_type=elementor_library&p=4735&elementor-preview=4735&ver=1701336880 404 (Not Found)

(anonymous) @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
$e @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
append @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
initPreview @ editor.min.js?ver=3.17.3:3
onStart @ editor.min.js?ver=3.17.3:3
onStart @ editor.min.js?ver=3.17.3:3
(anonymous) @ backbone.marionette.min.js?ver=2.4.5.e1:24
f.triggerMethod @ backbone.marionette.min.js?ver=2.4.5.e1:24
start @ backbone.marionette.min.js?ver=2.4.5.e1:25
(anonymous) @ editor-loader-v1.min.js?ver=3.17.3:2
(anonymous) @ editor-loader-v1.min.js?ver=3.17.3:2
zicho.hu/:234

   GET https://www.paypalobjects.com/en_HU/i/scr/pixel.gif 404 (Not Found)

editor.min.js?ver=3.17.1:2 Uncaught TypeError: Cannot convert undefined or null to object
at Function.entries ()
at loopBuilderModule.createDocumentSaveHandles (editor.min.js?ver=3.17.1:2:64414)
at loopBuilderModule.onElementorFrontendInit (editor.min.js?ver=3.17.1:2:64076)
at p (load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10:3644)
at f (load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10:3497)
at a (load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10:692)
at e.trigger (load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10:3380)
at Editor.initFrontend (editor.min.js?ver=3.17.3:3:554977)
at Editor.onPreviewLoaded (editor.min.js?ver=3.17.3:3:567920)
at Editor.onPreviewLoaded (editor.min.js?ver=3.17.3:3:1116369)
createDocumentSaveHandles @ editor.min.js?ver=3.17.1:2
onElementorFrontendInit @ editor.min.js?ver=3.17.1:2
p @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10
f @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10
a @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10
e.trigger @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:10
initFrontend @ editor.min.js?ver=3.17.3:3
onPreviewLoaded @ editor.min.js?ver=3.17.3:3
onPreviewLoaded @ editor.min.js?ver=3.17.3:3
dispatch @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
v.handle @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
load (async)
add @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
(anonymous) @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:7
e. @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:7
(anonymous) @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
each @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
each @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
Le @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
on @ load-scripts.php?c=0&load%5Bchunk_0%5D=underscore,jquery-core,jquery-migrate,backbone,jquery-ui-core,jquery-ui-mouse,wp-api-request,wp-polyfill-inert,regenerator-runti&load%5Bchunk_1%5D=me,wp-polyfill,wp-hooks&ver=6.4.1:4
initPreview @ editor.min.js?ver=3.17.3:3
onStart @ editor.min.js?ver=3.17.3:3
onStart @ editor.min.js?ver=3.17.3:3
(anonymous) @ backbone.marionette.min.js?ver=2.4.5.e1:24
f.triggerMethod @ backbone.marionette.min.js?ver=2.4.5.e1:24
start @ backbone.marionette.min.js?ver=2.4.5.e1:25
(anonymous) @ editor-loader-v1.min.js?ver=3.17.3:2
(anonymous) @ editor-loader-v1.min.js?ver=3.17.3:2
post.php:1 Uncaught (in promise) Error: A listener indicated an asynchronous response by returning true, but the message channel closed before a response was received

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