front page widgets disappear after Optimizer Theme update

Hi,

I just installed the most recent update of the Optimizer theme for my website. Unfortunately two problems arise:
– all my frontpage widgets have disappeared. While I can still see them created in the Customize menu, they do not actually show up on the site.
– on the frontpage I also lost the part at the top that normally allows me as an administrator to directly go to the dashboard, customizer or edit category. This part does show up on all other pages on the website.

I deactivated my plugins, but this did not make any difference. Does anyone have a solution to this? Many thanks!