[Plugin: SEO Smart Links] blocks the post content

I noticed that one of my posts (the most commented one) was missing. Everything was there except the body of the post. I went through several posts (not all) and that was the only one missing.

I deactivated all the plugins and started reactivating one by one. The post was back until I reactivated SEO smart links.

When I removed it again, the post was back again.