invalid_json

From one day to the other, I have had the problem from one day to the other that the form is no longer sent, even though nothing has been changed beforehand. The console reports:

Object { code: “invalid_json”, message: “The response is not a valid JSON response.” } ……. index.js:1:7077
1 https://www.campingpark-zuruf.de/wp-content/plugins/contact-form-7/includes/js/index.js?ver=5.7.4:1
(Async: promise callback)
1 https://www.campingpark-zuruf.de/wp-content/plugins/contact-form-7/includes/js/index.js?ver=5.7.4:1
m https://www.campingpark-zuruf.de/wp-content/plugins/contact-form-7/includes/js/index.js?ver=5.7.4:1

We have already deactivated all plugins with the exception of CF7, which has not eliminated the problem. Latest WP version. Enfold topic. What does this message say and what can I do?

Andreas

• This topic was modified 1 year, 11 months ago by klabauter18055.
• This topic was modified 1 year, 11 months ago by klabauter18055.
• This topic was modified 1 year, 11 months ago by klabauter18055.

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