compliance error 312 - due to constraints?!?

Hi there,

 

for a student project i am trying to set up a topology optimization. The solver output stated an error due to too large compliance.

I run an analysis to check the stresses and displacement and what i noticed is that the stresses seem to be reasonable but the displacement is too big.

I believe that it is a terrible rookie mistake i´ve made here but i cant help to figure it out by myself. I think it might be to poor constraints or a failure within the consistant units.

 

'*** ERROR # 312 ***
 In static load case 1
 the compliance is negative or large 2.79913e+010.'

 

Would it be possible to get help to solve the issue?

 

https://drive.google.com/drive/folders/15O0eUOA_snbKMg00gu2NWn2zxd279v3m?usp=sharing

 

Thanks in advance,

 

Daniel