how to repare:

in the file zorro.mq4

row (353-354):

int start = (int)arr[1]+(timeframe*timeZone);
int end = (int)arr[2]+(timeframe*timeZone);

and row 77 ( not important )
extern int timeZone = -2; // if server is +2GMT

is only temporary - becouse must be add the DST

MT4 servers are GMT +2 or GMT +3 depending on New York DST (Daylight Savings Time)

( not tested !! )