fatal message

[rablero]

Hiii...I have a problem with the analysis, when I started the analysis and opened the .f06 file I found this message written:
USER FATAL MESSAGE 9050 (SEKRRS)
^^^ RUN TERMINATED DUE TO EXCESSIVE PIVOT RATIOS IN MATRIX KLL
without any datas! Who knows what is the matter?
Please help me!

 

[franc11]

Usually, it should come with a message stating that you have to constraint your model in a proper way. I have the exact same error message but can't figure out how to constrain it properly.