Infinite SEO causing major problems

Problems:

1. Meta descriptions don’t save. At least not for long. About 20 of my recent additions got blown out.

2. Sitemap not being generated.

3. Suggested keywords not working.

I’ve got HeadSpace2 and SEO Smart-links installed. I’ve tried to deactivate to see if it fixes the issue but I’m not seeing it work.

I’m using the Minerva theme but I’ve seen this same issue on several other of my custom themed sites. Any suggestions please?