[Error 100] Wrong serial or access number

1
Hello everyone,




 




  I wanted to play again to PSO online but i have this error 100 to stop me. I did the registration on this site (with serial and access number i have on my option menu in game). 




 




  Need i to erase my "guild file" on my memory card or something?




 




  I beg your help and thanks you by advance,


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Shagsou