I am doing computational calculations on Covalent organic Frameworks using Schrodinger software. I am using PBEO-D3 theory with basis set 6-311G*. I am getting an error message. What I have to change ?

**Aborting SCF (increased accuracy is needed) consider setting nops=1 or nofail=1 in the gen section of the input file. ERROR 7009: fatal error Aborting SCF due to very large DIIS error: 1.15E+01 Error: jaguar died in program scf

Thanks in advance.