2 problems in archive – wrong date & wrong comment

Outwarding, everything looks good and seems to be working, but….

1) summary of posts on front page is fine, correct date, etc.. but when I click “more” to view the full post, the date on the right sidebar is wrong. https://karlyns.com/

2) people can comment on posts fine and I get the email to approve or delete the posts fine, but when i click “approve” the comments get put in the wrong order/with the wrong original post.

I have searched for forum for help, but nothing quite matches what I am looking for. I hope someone can help.