The GUI trigger data contains an unregistered function (even an empty/white space string at that). As for your problem, there are multiple triggers that use language constructs like
for var = minVal to maxVal
endfor
for unit in group
endfor
Those are neither standard jass nor vJass, so JassHelper won't be able to process it and the fact that you do not know that and that there is quite a number of jass triggers although you claim to not have any idea of jass makes me doubt this being your map at all.