Plugin could not be activated because it triggered a fatal error.

Fatal error: Uncaught Error: Class ‘pluginSedLex’ not found in /home/xxx/xxx.com/wp-content/plugins/shorten-url/shorten-url.php:30 Stack trace: #0 /home/xxx/xxx.com/wp-admin/includes/plugin.php(2288): include_once() #1 /home/xxx/xxx.com/wp-admin/plugins.php(192): plugin_sandbox_scrape(‘shorten-url/sho…’) #2 {main} thrown in /home/xxx/xxx.com/wp-content/plugins/shorten-url/shorten-url.php on line 30