Thanks for answering @cjquijano but I can’t increase the number of processors because I have a student account, but I will try to reduce the number of mesh elements as you mention.
The elements are solid and of first order, and I used a thicker mesh but with refinements, but unfortunately it still doesn’t work.
Jousefm’s recommendation has more to do with modal and dynamic analysis as far as I can see, but in my case it’s a static analysis.I will continue to study more about it.