Generally you should try to get help for any client problems on the Support forums at forum.vuze.com. If someone there asks you to generate debug info, here is how to do it.
1) Click on 'Help' then Generate Debug Info (Crash Log)'
2) Enter a brief description of the problem on the text box, then click on 'OK'.
3) Vuze will create and compile the debug information (debug.zip). Click 'OK' to open the Vuze folder (Azureus folder for client versions prior to 3.1)
Note: Make sure to enter a description of the bug that you are reporting and please include the "hs_err_pid<nnn>.log" file (where nnn is some number) which are locted in the Azureus executable directory to the zip or submit them separately.