Do you have Rpgmaker 2000? If so, open the game and start it in Test Play and load your save. Then press F9 and a menu with all the switches should pop up. Press right until you reach S[0701-0710] (and so on) press down once and then enter. Maneuver to the END EPISODE 6 switch (which should be ON) and toggle it OFF by pressing Enter.
Try changing the switch on page 3 of the event in the middle of the top map to 2220:END OF EPISODE 6? :/ That was what I did, I just assumed the END EPISODE 6 switch was on since the event never started..