Internal error 1355 in module 19 problem when change routing status from certified to under development

Dear All,
When I want to change the status of routing from certified to under development, Navision 4.0 sp2 can't work and create a message says "internal error 1355 in module 19". Error detail is:
Event type: Naivsioninternalerror P1 : navision P2:
P3 : 1355  P4 : 19

Error report contents:
D:\Documents and Settings\data\Application Data\navinfo.txt

What should be the solution for the problem..? Any answers from you are expected so much.