Hey,
Can anyone let me know whether the below sentence is correct or not?
"It sometimes does not add a site because it was failed to modify the the file on the server."
Thanks,
Heather
You might also mean:
"It sometimes does not add a site because the file on the server was not modified."
"It sometimes does not add a site because the file on the server has not been modified."
That is, the responsibility for modifying the file was not 'its'; it was someone else's, maybe yours.