The Theme had problems with the Page Manager module (the Theme uses Panels as layout builder). Performing an update of the Drupal core and the modules, the problem was corrected and the Theme worked correctly. Much use of HTML code wasting the potential of Drupal for theming.
Contents issues can't customise.
If you any help please contact us.
Sorry but panels are not supported, website went down - and I cannot work in twig so I couldn't get my content types work.