Error: Forbidden

Hi,

I’m having a lot of issues with this plugin. I had this installed, but when i was trying to alter any setting, it showed this:

I tried to disconnect from Cloudflare but same error, so i’ve decided to remove it completely, but i was getting this error during uninstall:

{“code”:”qm_fatal”,”message”:”Uncaught Error: Class \”SPC\Utils\Helpers\” not found in /var/www/wp-content/plugins/wp-cloudflare-page-cache/uninstall.php on line 29″,”data”:{“message”:”Uncaught Error: Class \”SPC\Utils\Helpers\” not found”,”file”:”/var/www/wp-content/plugins/wp-cloudflare-page-cache/uninstall.php”,”line”:29,”trace”:[{“file”:”/usr/src/wordpress/wp-admin/includes/plugin.php”,”line”:1314,”function”:”include_once”},{“file”:”/usr/src/wordpress/wp-admin/includes/plugin.php”,”line”:970,”function”:”uninstall_plugin”},{“file”:”/usr/src/wordpress/wp-admin/includes/ajax-actions.php”,”line”:4771,”function”:”delete_plugins”},{“file”:”/usr/src/wordpress/wp-includes/class-wp-hook.php”,”line”:324,”function”:”wp_ajax_delete_plugin”},{“file”:”/usr/src/wordpress/wp-includes/class-wp-hook.php”,”line”:348,”function”:”apply_filters”,”class”:”WP_Hook”,”type”:”->”},{“file”:”/usr/src/wordpress/wp-includes/plugin.php”,”line”:517,”function”:”do_action”,”class”:”WP_Hook”,”type”:”->”},{“file”:”/usr/src/wordpress/wp-admin/admin-ajax.php”,”line”:192,”function”:”do_action”}]}}

So i decided to remove directly tables on database and remove plugin to install it again. But still, i have issues, when i click on ‘Enable caching’ i got the same Error Forbidden as attached in the screenshot. What is happening? Thank you.