fix: small fix for an invalid error message in the sightings
fix: small fix for an invalid error message in the sightings

crruthe/MISP,MISP/MISP,Rafiot/MISP,devnull-/MISP,MISP/MISP,MISP/MISP,crruthe/MISP,TheDr1ver/MISP,devnull-/MISP,SteveClement/MISP,cristianbell/MISP,cristianbell/MISP,MISP/MISP,SteveClement/MISP,FIRSTdotorg/MISP,FIRSTdotorg/MISP,Rafiot/MISP,Rafiot/MISP,SteveClement/MISP,TheDr1ver/MISP,crruthe/MISP,MISP/MISP,FloatingGhost/MISP,devnull-/MISP,FloatingGhost/MISP,SteveClement/MISP,FIRSTdotorg/MISP,TheDr1ver/MISP,FloatingGhost/MISP,cristianbell/MISP,cristianbell/MISP,TheDr1ver/MISP,FloatingGhost/MISP,Rafiot/MISP,devnull-/MISP,FIRSTdotorg/MISP,crruthe/MISP,SteveClement/MISP