When I checked my model, there was no warning message, but when it starts the analysis there were a lot of warning such as WARNING THE SOLUTION LOST 7.9 DIGITS OF ACCURACY FOR DOF UZ OF JOINT 11484 LOCATED AT X = 1414.000, Y = 698.444444, Z = 1056.000, STIFFNESS MATRIX DIAGONAL VALUE = 2.6116E+10
Why is this happening? After this, when it's time for design, then the result shows almost all beam and column are over stressed and failed. How can I correct my model? What kind of prevention should be taken to avoid this problem?