The problem seems to be related to your solvent line "solvent name Ace model Ace". What solvent model are you trying to use (the "ACE" model I found is by Schaefer and Karplus, J. Phys. Chem. (1996) vol. 100, pp. 1578-1599, DOI: 10.1021/jp9521621, the default model in the MD code is "SPCE")?