I'm using 5.7.5.8 with the Clonemental theme.
I'm editing a content block. I'm using the html editor because if I edit in the text editor it breaks some of my code, but this is fine because I can work around it.
The weird problem is that if I type the word "from" in my paragraph and try to save it, I get a pop up that says Error: Access Denied, with no further information. I can add other text in the exact same spot with no problem.

For example, I can type:
cannot be naturally extracted.
cannot be naturally extracted test test test.
cannot be naturally extracted literally anything else can be written here.

But, if I type:
cannot be naturally extracted from blah blah anything else after the word from
It will give me the error when I click save on the editor.

And while I can end the sentence at extracted and have it make perfect sense, I can think of no logical explanation as to why this error would occur. There are at least 10 other instances on the same page where I use the word from with no problem.
Any ideas/solutions are appreciated. :)