In PHPR 5.2 5482, when using Innova Editor in a page, when I get into the add/edit page after the page is loaded the focus/caret goes to the editor. Therefore if the first field is a required field the 'field is required' is triggered.
Athanasios, post your application to Demo Account and open a ticket at http://support.xlinesoft.com sending your Demo Account URL. 'Demo Account' button can be found on the last screen in the program.