Thanks for the reply.
From the next time i will surely give screen snapshot instead of photograph.
Initially i was only providing the fixed support at bottom of soil face and not provided any boundary condition on the rest four sides. But now when i provided displacement on the rest four sides allowing displacement only in y direction keeping x and z direction displacement 0.
My static structural analysis model has perform the analysis but in modal analysis its showing the same error. Also the total deformation which is coming in static structural is high.
I have provided standard gravity load for both the analysis.
Large deflection is off for static structural.
In Static structural analysis why it is showing such high deformation and that same unknown error in modal analysis?
Thank you