I get the message mentioned in the title after a distance scan with a Gaussian calculation. I have bound a gold atom to a carbon in the pyridine ring and now pull this further and further out with a relaxing scan. I used ONIOM to define two layers for pyridine and gold to calculate a set for heavy atoms. Of course, the pyridine charge changes when the gold is no longer bound to the pyridine. Is there a way to suppress this error with an option? The only thing that occurred to me would be to optimize the individual structures separately after and before the separation to preserve the orbitals. I'm only concerned with the energy available at this point, is it also influenced by the error message?