Here are a few possible solutions:
Use a shorter file name: One of the easiest ways to fix this error is to simply use a shorter file name. This will reduce the length of the file path.
Use the --shorten-filenames option: If you're using the tar command to create an archive, you can use the --shorten-filenames option to automatically shorten file names that are too long. This can help you avoid the "FILE NAME TOO LONG" error, as well as ensure that your archive is created successfully.
Use a different archiving tool: If you're using a different archiving tool, such as zip or 7zip, check to see if it has any options that allow you to shorten long file names. For example, the zip command has a -j option that can be used to "junk" the directory structure, which will remove the file path from the file names in the archive.
Use a different file system: If you're using a file system that has a small maximum file name length, such as the old FAT32 file system, you may need to switch to a different file system that allows for longer file names. For example, the modern NTFS file system allows for file names up to 255 characters in length, which should be sufficient for most purposes.
Ultimately, the best solution will depend on your specific situation and the specific cause of the "FILE NAME TOO LONG" error. Try one or more of the solutions above to see if they can help you fix the problem.