My issue is summarized in the picture and posted in the link https://scicomp.stackexchange.com/questions/30458/what-does-the-error-this-matrix-type-does-not-have-a-find-zero-diagonals-define?noredirect=1#comment56074_30458
[cid:image001.png@01D4715E.DAED5B40] Kind regards Wenjin