UPDATE: I solved the problem.
While working in VFP 9 I mistakenly close the project file (in IDE).
Then I opened VFP again, changed directory to the project directory (D:\MYPROJ) and do command MODIFY PROJ ?. Then I select the project file (MYPROJ.PJT). Now I get a prompt that the home directory of the project changed. Then I get tons of prompts that files (images and reports and tons of others) cannot be found.
Then I restored the project files (MYPROJ.PJT and MYPROJ.PJX) from a backup but I get the same prompts and many missing files.
What can I do to bring the project to a normal state?
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham