Please post your URL, Username and Password in Secure Tab and i will take a look and maybe figure out what the problem is.
For posting sensitive information you hit the Blue Reply Button and then you will see Secure Tab. Post all info that is sensitive in there, only Fellow Mods, Staff and I can see that!
What is the purpose of this extension exactly? In what way will this extension effect our site? We have multiple sites that are running Gantry and none of them are having this same issue. What is unique to our site jimwann.com? Judging by the features of the extension I'm assuming the audio and video on our site are causing issues. Is this a new requirement to run Gantry or is it at least suggested to be installed on a site with Gantry to avoid this potential error?
What is unique about our site jimwann.com that causes it to need this extension? Our other sites that run Gantry do not experience this error when logging in.
Please reply with details on why the ffmpeg-php extension is needed for our site. I would appreciate more information to support the need for this extension opposed to blindly instaling it.