Cannot install, probably php version reason(php7)

[ghost]

Warning: require_once(/var/www/html/wordpress/wp-content/plugins/wp-multilang-master/vendor/autoload.php): failed to open stream: No such file or directory in /var/www/html/wordpress/wp-content/plugins/wp-multilang-master/wp-multilang.php on line 31

Fatal error: require_once(): Failed opening required '/var/www/html/wordpress/wp-content/plugins/wp-multilang-master/vendor/autoload.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/html/wordpress/wp-content/plugins/wp-multilang-master/wp-multilang.php on line 31

Any hints or solutions to fix the issue?

Thank you very much!

[Anticosti]

Try changing the plugin-name from: /wp-content/plugins/wp-multilang-master/ to: /wp-content/plugins/wp-multilang/

[soft79]

Install the version from here: https://wordpress.org/plugins/wp-multilang/

Or use composer to include the vendor packages.