i installed my program to another computer and when i tried to open one of the forms i get this error,

table 'employee.dbf' is not marked as belonging to the "dtr" database. would you like to create the back link to mark it? [ yes / no ]

nothing happens if i click no. if i click yes i get this message,

error loading file - record no. 6 myformbase1 < or one of its members >. loading form or data environment: file must be opened exclusively.

i don't get this errors when i try to run the application in my own computer where i programmed it.

what should i do, any help pls?