After looking at your pages source code I can see that you have installed plugs that deal with different languges as input texts and spell checker.
This might be effecting your authors page from performing correctly.
I don’t think the developers of this article theme have gone as far as excepting such changes…. after all it is a realy simply built theme for free. Could be only made for english input.
Just a stab in the dark…. but try removing and playing around with these plugs.
Aslo I noticed some duplicate scripts running. For instance on your “all in one SEO” scripts the “canonical” page redirects runs twice.
<link rel=’canonical’ href=’https://www.amazingarticles.com/author-page/’ />
<!– All in One SEO Pack 1.6.7 by Michael Torbert of Semper Fi Web Design[160,205] –>
<link rel=”canonical” href=”https://www.amazingarticles.com/author-page/” />
<!– /all in one seo pack –>
this is for google but might be effecting which page shows up to your authors…. another stab in the dark try to disable this feature from seo “canonical” un check. But I don’t beleve the problem is there anyway.
good luck!