This happened after activating the plugin and install/activate Faker Press to create dummy posts.
Warning: get_class() expects parameter 1 to be object, null given in /var/www/html/wp-content/plugins/lorem-user-generator/LoremUserGenerator/Plugin.php on line 56
Warning: call_user_func_array() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in /var/www/html/wp-includes/class-wp-hook.php on line 286
Warning: call_user_func_array() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in /var/www/html/wp-includes/class-wp-hook.php on line 286
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/plugins/lorem-user-generator/LoremUserGenerator/Plugin.php:56) in /var/www/html/wp-admin/includes/misc.php on line 1114
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/plugins/lorem-user-generator/LoremUserGenerator/Plugin.php:56) in /var/www/html/wp-includes/pluggable.php on line 1216