Fatal Error after Plugin update

i have an issue.
How can i fix it. I cant open Rank math.

Warning: include(/www/wp-content/plugins/seo-by-rank-math/vendor/autoload.php): failed to open stream: No such file or directory in /www/wp-content/plugins/seo-by-rank-math/rank-math.php on line 261 Warning: include(): Failed opening ‘/www/wp-content/plugins/seo-by-rank-math/vendor/autoload.php’ for inclusion (include_path=’.:/usr/share/php’) in /www/wp-content/plugins/seo-by-rank-math/rank-math.php on line 261 Fatal error: Uncaught Error: Class ‘RankMath\Installer’ not found in /www/wp-content/plugins/seo-by-rank-math/rank-math.php:275 Stack trace: #0 /www/wp-content/plugins/seo-by-rank-math/rank-math.php(185): RankMath->instantiate() #1 /www/wp-content/plugins/seo-by-rank-math/rank-math.php(164): RankMath->setup() #2 /www/wp-content/plugins/seo-by-rank-math/rank-math.php(497): RankMath::get() #3 /www/wp-content/plugins/seo-by-rank-math/rank-math.php(501): rank_math() #4 /wordpress/wp-admin/includes/plugin.php(2255): include(‘/www/wp-content…’) #5 /wordpress/wp-admin/plugins.php(177): plugin_sandbox_scrape(‘seo-by-rank-mat…’) #6 {main} thrown in /www/wp-content/plugins/seo-by-rank-math/rank-math.php on line 275