I currently have the latest version of the AddThis plugin running on my WordPress blog. Before installing and activating AddThis - I was able to use the WordPress App for iOS, as well as Blogsy, to add and edit by blog posts. After installing and activating AddThis, both applications return an "Internal Server Error" message when I try to load blog posts.
As soon as I deactivate AddThis, both apps function as expected.
Has anyone else experienced this issue and/or have any suggestions to correct this error?