PS2 PAL & DVD-Video R1

[Fateh2002]

i have a PAL PS2 run R2 dvd video very well.
but one day i tried to play Dark Angel Season 1 NTSC R1 on it using ActionReplay2 Region Free Ability..
After choosing R1 it asked me to insert the DVD Video and then it loaded it wel until a screen show up asking me to change something i don't remmeber in order to make the movie run first i hit no and ps2 back to its main menu.
then i repeated it and hit yes and this time it asken me to put a password to continue and i did and it goes very well.......
i watched that times two episodes without no problem.....
the problem know that it did not run any R1 movie again even with ActionReplay 2.....
what happen when i use AR2 that it freeze after inserting the disc after choosing R1.

i do not know how to remove that password or even where.
this picture is what show when it ask me to put the password or like cuz i do not remmeber exactly what was written in it



any help.........