Hello Jippo,
1st, you should download the latest version from the website, if you didn't update since last Sunday evening. Maybe the bug you have already got fixed.
After, if the bug is still there, send me "Tennis.ini" + "System.log" + all sub-folder "Profiles" compressed in .zip or .rar to my email address (the one you got ur license key from)
Did you click on "yes" to send me the bug report when the crash happened ?
also, thanks...