Theme installation failed

I have downloaded and going to install it with the latest WordPress version. Unfortunately, there was an error. Here I mentioned the error below.
—————————————————————-
Installing Theme from uploaded file: themeforest-SXE9oNwZ-travelwp-traveltour-booking-wordpress-theme.zip
Unpacking the package…
Installing the theme…
The package could not be installed. The theme is missing the style.css stylesheet.
Theme installation failed.
—————————————————————

Please advise.