Blogroll, etc has disappeared from one page in my blog

I’m in process of putting together a new blog. It currently has 6 pages on it. When I set it up the Blogroll, Archives, Categories, etc were all on the right hand side of every page.

All of a sudden the Home page changed. The blogroll, etc is now at the very bottom of that page. The other 5 pages have not been affected.

To the best of my knowledge, I did nothing to change that page. The only thing I did was copy and paste an email that was sent to me onto the home page. Help!!

The blog is at https://www.ecibio.com/biotechblog/

I haven’t tried eliminating that email I pasted there to see if it helps yet, but I wouldn’t think that should have made a difference.

Well, I just tried deleting the email that I had pasted to the blog and it didn’t help. The email posting is gone but the problem remains.