Im not sure why cura LE is producing GCODEs which then seem to be not understood by the selected printer as a mini in this case.
In particular I see in the log:
echo:Unknown command: "G21"
echo:Unknown command: "M425 Z"
echo:Unknown command: "M425 Z F0"
echo:Unknown command: "M73 P0"
The first one is odd since that Gcode is supposedly just setting to millimeters
The second two of M425 I have not found what they mean.
The last one is a progress update - and maybe is meant to be displayed - except this printer doesn't have an LCD and the LCD box is not checked - so if the mini doesn't understand this command - not sure why cura uses it in the slicing/gcode creation..