BuddyPress does not have an edit function for the avatar and that message does not appear in the BuddyPress codebase, are you sure this is a feature of BuddyPress?
If I go to the new Profile page that I created through my site after installing BuddyPress, and then I hit the camera icon on my avatar, it opens this page: https://www.celebritywotnot.com/members/c-claire/profile/change-avatar/ which displays the message: “OOOPS, SORRY! WE COULDN’T FIND IT! You have requested a page or file which doesn’t exist”
Many apologies if there is something I’m missing here. I assumed this was part of the extended profile option in Buddypress but perhaps its through WordPress’ own Users or Discussion section in which case, I’m still not sure what I’m doing…
Ah got you. Looks like something is blocking that page. I’d try the following in the first instance:
1. Check you have member profiles enabled in Settings>>BuddyPress you should have but it’s an easy check.
2. Re-save your permalinks, making sure you are not using the default (top) setting.
3. Deactivate all other plugins apart from BuddyPress and check to see if it works.
4. Try using a default theme such as 2017.
One of those steps should identify the problem.
That’s brilliant! It was a plugin conflict – thank you so much.