URGENT SUPPORT NEEDED ! I have hundreds of warnings and I have no idea what's wrong

Question

I have hundreds of warnings and I don't know what to do about it. They are all about ZERO STIFFNESS IN DIRECTION__ AT JOINT__ EQN. NO.__ and THERE WERE MORE THAN 12 DOF WITH ZERO STIFFNESS. 
 VILLA QAHTANI R14.std

Abhisek M · Answer

In your model you have introduced master slave specifications. All the master nodes are not connected to the structure. The diaphragm you used is in X-Z plane. As a result there is no restraints for those vertical nodes in vertical direction. Due to this reason so much "Zero Stiffness" warnings are shown by the program. If you use a rigid type of diaphragm instead of X-Z , the warnings will not be there.