Onset of error messages when trying to add pages, calendar events and manually add new members

  • As far as I remember get_metadata_byname() function was removed in Elgg 1.8

    I guess you are trying to use this "follow_tags" plugin which is a very very very old plugin in elgg 2 or elgg 3. As this function no longer exists in the core hence you are getting this error.

    Simply remove the "follow_tags" plugin from your mod folder.