Welcome to the Let's Encrypt Community, Alireza 
It looks to me like you (or someone) may have already solved your problem since I see the first of three Let's Encrypt wildcard certificates was generated 20 hours ago:
Since those certificates were not generated via AutoSSL (since they are wildcard certificates), they need to be manually installed into cPanel. Here is a link to instructions for manually installing certificates into cPanel:
You will need to have the wildcard certificates and their private keys on-hand to install them. This might mean needing to figure out where they were generated. Once you have them, you will need to copy their contents from wherever they are located instead of the CertSage folder.