How to get PEEQERI using GETVRM

Dear all I would like to know how to use GETVRM to get PEEQERI. I would like to use the plastic error to stop the analysis and triggering the remeshing. Apparently when I try to use it, I receive an error "UNIDENTIFIED OR INVALID OUTPUT REQUEST." I tried for other variables such as stress and strain components and works perfectly. But not for the error indicator or any other scalar magnitude. Could you suggest me something to try? Otherwise I have to script the entire error estimation outside.