Can't modify page size.

Wanted to change the size of my page on one desing I working on, and found that I can change it. The boxes to enter the page size are off, and the tab with the list of page sizes and empy. And if I got to the menu options "Tools - Personalize - Page" the program crashes. Any idea how to selve this problem!? Have been using this corel since 2018 and this is the first time I get this problem.

Oswaldo.