You’re likely using a very old version of Elementor.
Here’s what you need to do:
1. Access your server via FTP or your File Manager in your hosting control panel.
2. Navigation to wp-content/plugins
and delete the gp-premium
folder.
3. Log in to your Dashboard, and update Elementor to the latest version.
4. Re-install GP Premium.
Your hosting support should be able to help you with #1 and #2 if you’re not sure where to go.
Let me know. Sorry for the inconvenience!