The screen shot came out too small to be readable. I do question some of the configuration.h settings in your firmware zip file. You have motherboard type 33 set up, and later these definitions -

#define TEMP_SENSOR_0 -1
#define TEMP_SENSOR_1 -1
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_BED 0

The -1 on TEMP_SENSOR_0 says the hot end is measured through an AD595 chip. Is that true? If not, change the -1 to the value for the thermistor your hot end supposedly uses. There's a table in the configuration.h file with values; repraps are usually set for a value of 1.

Motherboard type 33 means there's only one extruder, so TEMP_SENSOR_1 should be set to 0.

If your printer has a heated bed, TEMP_SENSOR_BED should be changed to the value for the thermistor used on the bed. Again, repraps are usually thermistor type 1, but it depends on what the manufacturer used on your heat bed.