How can I correct this argument in my blog?

possibly inform the plugin author (via the plugin’s direct support section https://www.ads-software.com/support/plugin/media-library-assistant ) about the problem.

is it effecting the public facing part of your site?

I cleaned up all the wpdb::prepare() calls in Media Library Assistant in the latest version, 1.00. The current version should be fully 3.5 compatible. If you have any problems with it, please start a support thread in the direct support section and I will respond there.

Thanks for using the plugin!