Are the configs right? Look at this lines:
#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,4000,473} // Ano default steps per unit for Ultimaker {78.7402,78.7402,200.0*8/3,760*1.1}
#define DEFAULT_MAX_FEEDRATE {500, 500, 1, 25} // Ano (mm/sec) {500, 500, 5, 25} // Statt 5 2 oder 1
I had the same problem, but after editing the config it worked.