I am trying to enable ORCID plugin. I fill the details correctly, but when I click on the ok button, it does not save the setting and its show the loading circle rotates always. Sometimes it happens when I try to add a discussion at all stage.
When you see the loading circle which hangs indefinitely, this probably indicates a PHP or Javascript error behind the scenes.
Check your PHP error log for an Error or Fatal message there which corresponds to the date and time and IP of the failed request. (You can ignore Notice messages).
The message of “403 Forbidden” makes me suspect that your server might have mod_security installed with some rules enabled that are blocking normal OJS calls.
Try disabling mod_security. If the problem resolves, examine the rules to identify the culprit. If the problem remains with mod_security disabled, we’ll need to look elsewhere.