Invalid Logs - Help

Hi I was wondering why this boss fight for our guild is showing up as invalid?
https://www.warcraftlogs.com/reports/8hGHx1ZnL9RdWKcw/#fight=1&type=damage-done

Another instance of it being recorded comes under normal which is incorrect.

Any clarification would be helpful please

That happens when a piece of the log is missing. The site had lots of lag and issues today with uploads, so you may just want to try re-uploading it.