"Model details kho upload ka kana che sa related di :)". What are the Loads, Geometry components and how you are trying to tackle it? :D

With the limited information you have provided about your model, one way to navigate this problem could be by using displacement-based loading as opposed to force/pressure. Also, you should keep the nlgeom=on. If these options does not fix your issue, the problem with this material may not be setup properly or the material choice is not adequate for this problem.

Gurmeet Singh Thanks, Gurmeet, for your reply. Maybe it's because of displacement-based loading because it deforms 2 cm, but the first step is still incomplete. Nigeom is On in both steps. Now you can check the images i updated the Information.

Look at the warnings right before the error occurs - the error itself only tells you that it does not converge. Frequently, the warnings can give you some idea of what the problem is (e.g. material calculation not converging). Look at the stresses at the final increment, check if there is a reason where they are very high or close to some limit stress.

I've collected many tips here:

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