Error When Assigning Categories

I’m on 5.0.5, and when I edit the category of any post, I get the following error.

Warning: parse_url(http://) [function.parse-url]: Unable to parse URL in /home3/porter/public_html/anightinburlington.com/wordpress/wp-content/plugins/quick-pagepost-redirect-plugin/page_post_redirect_plugin.php on line 1157

Warning: Cannot modify header information - headers already sent by (output started at /home3/porter/public_html/anightinburlington.com/wordpress/wp-content/plugins/quick-pagepost-redirect-plugin/page_post_redirect_plugin.php:1157) in /home3/porter/public_html/anightinburlington.com/wordpress/wp-admin/post.php on line 233

Warning: Cannot modify header information - headers already sent by (output started at /home3/porter/public_html/anightinburlington.com/wordpress/wp-content/plugins/quick-pagepost-redirect-plugin/page_post_redirect_plugin.php:1157) in /home3/porter/public_html/anightinburlington.com/wordpress/wp-includes/pluggable.php on line 896

I assume this is caused from an update since the 5.0.3 issue earlier, since you likely rushed a few fixes. Take your time, get it working, and let me know when the above is fixed! Let me know if you need any further information (additional plugins, etc).

https://ww.wp.xz.cn/plugins/quick-pagepost-redirect-plugin/