Hi @Editor_JBPT,
This is a helpful clue:
Failed to load resource: the server responded with a status of 405 (Method Not Allowed)
OJS doesn’t make this kind of response by itself, so I suspect your web server is blocking the PUT request that OJS uses to save the settings page. I’d suggest reviewing your web server’s configuration, and perhaps its security log if it has one, to ensure that PUT requests are allowed.
Regards,
Alec Smecher
Public Knowledge Project Team