I cannot add any communication message, S3FlowShield plugin

Dear friends,
last 2.1.2 update made my membership out of operation totally. My database collapsed. I had to start from the scratch. (Standard WP 3.2.1 site.)
And there are still more issues to be solved:
- I cannot add any communication message
- S3FlowShield Plugin ( http://s3flowshield.com/ ) stopped to work correctly. It cannot play my s3 AWS videos, see my attachment. Nothing was changed from this plugin settings. If I disable your membership plugin, it works perfectly.

Thanks a lot for your help,
Martin