anisotropically in "GEOSTATIC" step (with distortion error)

Hello,

I simulated an isotropically triaxial test with 550000 (Pa) pressure on top and side of model in "geostatic" step. I defined vertical predefined field stress 550000 and lateral coefficient 1 too. I didnt have probloms in that model and the results were right.

But when I want to simulate an anisotropically triaxial test, I got error. I have just changed vertical pressure to 554000, and horizontal pressure to 548000.  I defined vertical predefined field stress 554000 with lateral coefficient 0.98917. when I run this file, I get error "Too many attempts made for this increment" in the increment 1 of step 1. and get "excessive distortion at a total of 2 integration points in solid (continumm) elements" in the warning.

Can any body help me please?

I can send both files to email of persons who need to see the models to help me.

Best regards,