Power BI Error

[Syndicate_Admin]

I am not sure if I am putting this in the right place but I currently have a power BI presentation and about 7 of the tables pull from a data bricks cluster. But I have been getting an error when I refresh 3 of them, all of the others are working. I don't know much about certificates or what the issue is. 

[Syndicate_Admin]

Ask the owner of the SQL server to renew the expired certificate. They will argue with you but be persistent.