Marking as a duplicate of Search error when selecting gender as a filter which has a corresponding ticket here: Individual search creates error message when searching by Sex and Org · Issue #320 · WildMeOrg/Wildbook · GitHub
Marking as a duplicate of Search error when selecting gender as a filter which has a corresponding ticket here: Individual search creates error message when searching by Sex and Org · Issue #320 · WildMeOrg/Wildbook · GitHub