This particularly happens on sites with a large number of categories.
To solve it is necessary to intervene on the PHP value “max_input_vars”, which governs the number of variables that can be used on a page, doubling it or modifying its value until reaching a configuration compatible with the module.
If you have a dedicated server, you should be able to do it directly from the server management panel (e.g. cPanel or Plesk), alternatively contact your hosting requesting the change.