Not able to download and install Premiere Elements 2021 update (version 2021.4)

When I open the Premiere Elements 2021, a window pops up with a suggestion to update. I can't go any further and choose anything. The window is constantly displayed on the screen and cannot be closed or skipped.

The options below don't work for me.

Apply the update in one of the following ways:

• Click Install Now or Install On Exit in the update message displayed in Premiere Elements.
• Choose Help > Updates (when the update message is not displayed).