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On WordPress 6.3 Beta 3 with Twenty Twenty-Three I had the following error message under the inserted contact form:
Es gab ein Problem mit dem Backend. Bitte kontaktiere den Administrator auf andere Weise.
I have deleted the contact form, inserted it again and the error was gone.
Any idea as to what could be the cause for this?
The page I need help with: [log in to see the link]