OK ~ I had all the same errors occuring and most of them were resolved by following the instructions in this post. However, I cannot open any links on the page at all. Not my profile, or anything ~~~ all of them give me a ‘file not found’ error.
Yes, I DID have permalinks enabled, but I went in and changed the line in my config.php file to false and saved the file. I’ve double checked and it did save my change.
Thanks in advance!