Michael, I'm so sorry. It's a bug.
I just check it again, seem as captcha just works for the comment section.
I will update it soon!
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For now, please use the file I attached below and replace to components/com_jlexguestbook/assets/script.js
Then, clear the cache of your browser and try again.
I hope it will work well!
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Again, thanks for your feedback!
Best regards,
Victor Nguyen.
@Michael is wrote at
2022-02-15 19:12:20
Hey Victor,
hm please understand that i not want to give unknown persons access to the backend of my site ...
There must be a bug in your module, which is the reason that recaptcha will not appear.
Because in all other extensions on my page it works. And on the Guestbook Section there are also no other modules or plug-ins which could interfer.
Thanks,
Michael
P.S.: I will install the new Joomla 4.1 the next days - maybe this could solve the problem...