Saving settings?

Hi

I’ve added a headless copy of kodi 17 to my server to update mysql libraries. i go in through the chorus2 web interface and make a few changes to the setting like the remote access username and password. i click the save button at the bottom of the screen but as soon as i go to another screen and come back everything has reverted back to the defaults. am i doing something wrong here? can anyone help me out with this?

thanks