I am solving a optimization problem with 13104 variables the maximization is looped over some set of initial conditions. At some point I get the following problem:

Do you have an old version of MUMPS installed? This post mentions the same error message, and the suggestion is to use MUMPS 5.1.0 or above, or a different solver backend.

I am not allowed to give a repdroducible example sorry. But I was still hoping to get some insight on what the error could mean and if it is a frequent one and how people generally approach it.