I'm trying to work with modular polynomials and Hilbert class polynomials in sage, and I would try the code Phi = ClassicalModularPolynomialDatabase() print(Phi[2]) The resulting error is a "LookupError: filename /opt/sagemath-8.6/local/share/kohel/PolMod/Cls/pol.002.dbz does not exist" Okay, no bi…