Please post your question to the support forum, including the error(s) you received. All questions in the support forum get answered, so you may want to re-visit that earlier post you mentioned — I’m sure it must have gotten an answer.
You appear to have a conflict w another plugin and/or your theme. Detecting this situation is actually a major feature of WPSSO. It appears you have rated the plugin negatively because it detected and reported a conflict. I propose you re-think your approach on this — if a plugin can detect an issue and let you know about it, so you can correct it, that this might actually be a good thing. Every other meta tag plugin I know of would not detect this kind of problem.
Hopefully you’ll rethink your rating of the plugin based on the plugin itself, not an issue caused by your theme templates and/or other conflicting plugins.
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