I have a wordpress multisite set up, and in my sub-site (called "team" site) I have buddypress. There is an activity stream, but I cannot post updates to the activity because there is a 403 error. When I click "submit" on a post and inspect the error, this is what I see on the network tab:
Request URL: https://<<masked>>.sg/team/wp-admin/admin-ajax.php Request Method: POST Status Code: 403 Remote Address: <<masked by me>>.31.79.150:443 Referrer Policy: no-referrer-when-downgrade
And when I check the actual response tab, this is the message:
The link you followed has expired. https://<<masked>>.sg/team/ Please try again.
What could be causing this problem? I cannot replicate this error on my local host.