This site explains stack overflow errors.

http://www.php.net/results.php?q=stack+overflow&l=en&p=all

I also found this info: You might want to make sure your technical requirements match.

Technical Requirements
Although most people will run b2evolution on Linux with the Apache web server, those are not required set-ups. It is possible, for example, to run b2evolution on Windows with the IIS web server. Additionally, b2evolution will also install and run on the OS/2 Warp Server for E-Business (WSEB), and the OS/2 Warp 4 client, aka Merlin. Both have to be installed with their respective fix pack updates applied and proper Apache2, MySQL, and PHP stack in place.