Why there was no grade on the complete raids damage

https://cn.classic.warcraftlogs.com/reports/aQP4xzv8FRYHjt2n#fight=72&type=damage-done
My ID is hunter:矮子哥丶
I’ve taken down all bosses on this record, and our team actually did follow the rules of Wcl which didn’t mention few minions didn’t execute will affect personal grade.And more than this, by the past months , all records which has been updated by this person had no grads . Would it be okay to tell me what exactly is going on?

hello?Kihra

You can run it through Shariva’s spreadsheet, linked on the Naxx rules page (which is accessible from the front page of the site).

am i break the rules?i cant understand