BuddyPress.org

Hi, I am a buddypress starter and have version 6.1 installed, and I am facing the problem of ajax front end not loading content for members, groups, activity listings pages.
Once a member is logged-in everything works, but not for logged-out users.
I also get a ‘page not found’ notice for members, groups and activity pages, although they actually load but miss ajax content as I mentioned.

I have made some readings of old similar issues, but I could not get a solution. Any help appreciated.
I already tried changing theme and deactivating plugins, but no success.

My website: diff-coworking.es

Thanks!