Why is the widget not displayed on the main page?

Question

WordPress

Hello! In general, as I wrote above, the widget is not displayed on the main page.
The problem is not visible in the WP and web server logs, all the necessary libraries are installed.
What could be the problem?
VDS Server

Answer 1

There is not enough information to answer your question.
Provide a link to the site.
What widget are you trying to display? If this is a standard widget, then this is one thing, and if it is a theme or plugin widget, then you need to debug this plugin or theme and see if there are PHP errors.
Enable wp-debug and look at the PHP logs
Disable plugins one by one and see which one works, thereby eliminating plugin conflicts
Change themes and check, thereby eliminating theme conflicts.
Look into the browser console and exclude js errors (any), as there may be display problems as a cascade.
Eliminate css style conflict. Maybe the z-index is tricky somewhere and the widget overlaps with something, or maybe something else ..
etc. etc.