Hello,
Thank you for your assistance so far. I have deactivated all plugins, yet the error persists. After that, I deactivated my theme, but unfortunately, nothing is displayed anymore since the theme was created exclusively with Elementor.
Furthermore, I noticed that the shortcode for the grid or slider is displayed correctly. Both the grid and the slider work fine. However, when I, for example, change the sorting of reviews or customize the appearance of anything, the slider or grid gets hidden. Only a white space appears where the slider or grid should be.
Additionally, I noticed that in the diagnostic display, both the slider and the lightbox are marked with a red exclamation mark. Could it be related to that? Is there a way to activate them afterward?
Thank you in advance for your help.
Best regards from Berlin