Mod Edit: OP’s file looks to be infected. Do not use.Couldn’t find the latest version in the forum so here it is:
Sales page
Remoeved
Download
Removed
Virus total
removed
Actual file scan:
Removed
To activate it:
Open your FTP/Cpanel:
Browse to this location \\website.com\wp-content\plugins\wordpress-seo-plugin\vendor\yoast\license-manager
Open the file “class-license-manager.php“Replace the line “if ( ! $this->license_is_valid() ) {”
With the line “if ($this->license_is_valid() ) {”
Save the file.
Enjoy