Hi everyone, I am trying to refine my model containing a ligand (a thiophene -like molecule with a 7 carbon atom cycle attached). I create restraints with ready set utility or directly with eLBOW, then I use phenix.refine and I get this error: "fatal problems in interpreting model file: number of atoms with unknown nonbonded energy type symbols: 12 Please edit the model file to resolve the problems or/and supply a CIF file with matching restraint definitions, along with apply_cif_modification and apply_cif_link parameter definition if necessary". Another problem is that as soon as I try to open REEL or open any result to check restraints, Phenix crashes... I was wondering if someone has the same issue and can help me figure it out! Thanks in advance Best regards Miriam