The next time Mute Screamer checks for an update to the PHPIDS project you will get a fatal error in the WordPress admin
Fatal error: Call to a member function attributes() on a non-object in wp-content/plugins/mute-screamer/libraries/mscr/Update.php
A patch will be ready soon, with a bug fix release out, but in the meantime if you come accross this error you will have to disable Mute Screamer by moving it out of your wp-content plugins directory. Unfortunately that is the only way to remove the error.
The problem is that the external feed has changed which is why the error is now happening. To prevent this i've added extra validation of the feed before the update process runs.
This problem only affects the WordPress admin side, the frontend of your site will still continue to operate.
Apologies for any inconvience this may cause you, I hope to resolve the issue swiftly.