please tell me what is this error? how can i fix it

- August 8, 2021 at 1:00 pm
  
  phamhiep07
  Subscriber
  
  *** ERROR ***                          CP =      1.312  TIME= 22:10:28
  The value of UY at node 1274 is 789090771. It is greater than the current limit of 1000000 (which can be reset on the NCNV command).
  This generally indicates rigid body motion as a result of an unconstrained model. Verify that your model is properly constrained.
  err.pdf
- August 9, 2021 at 1:25 pm
  
  Ashish Khemka
  Forum Moderator
  
  The error message indicates rigid body motion. Please check if the model is constrained properly in X, Y, and Z directions.
  
  Regards Ashish Khemka