Hello,
Please, check this article to see if it matches your issue: https://www.copytrans.net/support/i-have-itunes-missing-songs-exclamation-point-next-to-song/
You can also contact our support team with your log files at copytrans@copytrans.net. Here is how to generate log files: https://www.copytrans.net/support/preparing-log-files-to-contact-support/
Best regards!
CopyTrans Team