Javascript is disabled in your browser settings message

I have recently purchased and installed Serv-u MFT v 15.3.2 HF2. When I try to login to web client or filesharing, on the first attempt I get this message:

"Javascript is disabled in your browser settings. To use Serv-U File Server javascript must be enabled. Click on Reload below after javascript has been enabled in your browser settings."

If I press Reload the login page loads without problems.

This problem occurs on the latest versions of Chrome