If you experience crashes it may be useful to run Pumpa in debug mode. Right now you'll need to recompile it for that with the following steps:

cd pumpa
make clean
qmake CONFIG+=debug

In addition to adding debugger support to the executable, using debug mode will also cause Pumpa to display a lot more output to the terminal (stdout), e.g. when it is making HTTP requests, and other information potentially useful when debugging.

To run Pumpa in the debugger (you need to have gdb installed) type:

gdb ./pumpa

Inside gdb you then start Pumpa with the command run. If it has crashed you'll be thrown back to the debugger, then type where, which will tell you where it crashed. This information can be very useful (in particular the first 10-20 lines), please include it if you report a bug.