Instability at joint

Question

i was modelling a approach platform using STAAD Pro V8i. 
 i am facing the following errors 
 ***WARNING - INSTABILITY AT JOINT 7 DIRECTION = FX 
 ***WARNING - INSTABILITY AT JOINT 7 DIRECTION = FZ 
 i tried to apply all the possible solutions i got from the discussion but nothing is working 
 can someone plz analyze the model and suggest me some solution 
 i am attaching the related file

Modestas · Accepted Answer

Check your units in the model. I think that you wanted to use millimeters, but used meters. Change the units and instabilities should go away. 
 Regards, 
 Modestas

Modestas · Answer

Open the STAAD Input file by going to Edit -> Edit Input Command File. After the line END JOB INFORMATION change line UNIT METER KN to UNIT MMS KN. 
 Also, add line UNIT METER KN before the line DEFINE MATERIAL START in the input file.

Abhisek M · Answer

2063.WATER TOWER MAIN UNIT 9.std 
 Please find attached modified file. There were connectivity issues.