Deleting failed!

[hujuice]

Hallo, thank you for your work, but I decided to not use your plugin.
I deactivated it and then I was trying to delete it, but the Wordpress function ("Delete") fails for reasons not clear to me.
"Deletion failed: There has been a critical error on this website.Learn more about troubleshooting WordPress."
More details follow.

1. The issue is FYI, perhaps you should resolve the issue.
2. I'm going to manually delete the /var/www/vhosts/mywebsitedir/www/wordpress/wp-content/plugins/category-posts directory. Should I delete something else?

Regards,
Sergio

About the error.
The installed plugin version is 4.9.13.

In the webserver error log I find this:
[Mon Dec 26 10:03:24.276302 2022] [php:error] [pid 28793:tid 140656924145344] [client xxx.xxx.xxx.xxx:42908] PHP Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "categoryPostsuninstall" not found or invalid function name in /var/www/vhosts/mywebsitedir/www/wordpress/wp-includes/class-wp-hook.php:308\nStack trace:\n#0 /var/www/vhosts/mywebsitedir/www/wordpress/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()\n#1 /var/www/vhosts/mywebsitedir/www/wordpress/wp-includes/plugin.php(517): WP_Hook->do_action()\n#2 /var/www/vhosts/mywebsitedir/www/wordpress/wp-admin/includes/plugin.php(1265): do_action()\n#3 /var/www/vhosts/mywebsitedir/www/wordpress/wp-admin/includes/plugin.php(958): uninstall_plugin()\n#4 /var/www/mywebsitedir/www/wordpress/wp-admin/includes/ajax-actions.php(4698): delete_plugins()\n#5 /var/www/vhosts/mywebsitedir/www/wordpress/wp-includes/class-wp-hook.php(308): wp_ajax_delete_plugin()\n#6 /var/www/vhosts/mywebsitedir/www/wordpress/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()\n#7 /var/www/vhosts/mywebsitedir/www/wordpress/wp-includes/plugin.php(517): WP_Hook->do_action()\n#8 /var/www/vhosts/mywebsitedir/www/wordpress/wp-admin/admin-ajax.php(188): do_action()\n#9 {main}\n thrown in /var/www/vhosts/mywebsitedir/www/wordpress/wp-includes/class-wp-hook.php on line 308, referer: https://www.sergiovaccarophoto.com/wp-admin/plugins.php?plugin_status=inactive

The PHP version is 8.1.12
I have no other errors or issues both in my webserver and in my Wordpress interface.