Multiple page titles, Multiple body tags, Page title outside of head

Error messages from Screeming Frog: Error: Multiple page titles, Multiple body tags, Page title outside of head.
Dear Support Team. I am getting a lot of errors in the portfolio entries section of my website. I have tried all the options available to me to correct the errors. I have looked in the files to see if the tags are duplicated etc. Deactivated plugins and so on. The errors remained – even after deleting the cache and even re-indexing. Please take a look at my site and let me know how the problems arise and how they can be solved. Thank you very much.