Simple mass-lever-springs system not solved by Simulink

I have developped a very simple Simulink system with a lever attached to a free mass at C and two springs on A and B. when I apply a Force to single spring, or if a set a initial deformation the system fails to solve the equations.

[Sulaymon Eshkabilov]

Can you upload your model with your input parameters?

[Guillermo Gonzalez]

Here it is. One has a force acting in only one spring. The other one has just a initial condition of deformation in only one of the springs.

Thanks for your help.

[Rohit Pappu]

Have you tried using a Stiff solver like ode15s or ode23t ?

This was the result upon using a stiff solver like ode15s