Initial conditions (problem) - Fluid Structure Interaction

Hello,

I am working with the FSI module and I am trying to simulate the pumping phenomena in a micropump, by means of a moving plate. I have successfully obtained results for certain design parameters of the micropump, but, when I try to slightly modify those parameters (for example: plate thickness from 20[um] to 22[um]). The simulation doesn't work and the study reports an error in the initial conditions.

Any input is appreciated!

Thanks,
Mauricio