"The score cannot be uploaded, as we don't support this version of mscz files yet. Sorry for the inconvenience."

Hello,

I have an issue updating and then uploading my score to the website. I was fixing the synthesizer and doing some minor edits, and updating all my scores on the website. All scores updated and are on the website successfully, except one which shows this message. I am unsure of what it means (after reading some of the similar issues other users have encountered). May I have done something to the file? I am still able to open it and play it.

Any help would be great!

Thank you,