For a start, describe when and how Post Teaser crashes your blog. Be as details as you can and if possible, list the steps of what you were doing that cause your blog to crash.
A list of the plugins you use in your blog would be helpful. Also, your hosting details like what platform, versions of software including WordPress.
The more information you can provide means I don't need to go back and forth asking question after question.
You can post the above here but you will not get a quick response from be because I don't check this forum many times a day. Alternatively, you can also contact me directly by using the contact form on my blog.