Since WordPress 5.5, you can update the theme simple uploaded a zipped theme file via the WP Dashboard.
- Download the latest zip file for your theme from your account page on DinevThemes.com.
- Log into your WordPress site.
- Go to Appearance > Themes.
- Click the “Add New” button at the top of the page.
- Click the “Upload Theme” button at the top of the page.
- Select the theme zipped file from download directory on your computer.
Note: You can download the latest version of your theme from your account page.
Helpful link – How do I log to my account on DinevThemes?