differential-algebraic system error

I try to connect two hydro-pneumatic cylinder. but i have a this error

Error: An error occurred while running the simulation and the simulation
was terminated. Caused by:

Trouble solving algebraic equations in differential-algebraic system.
Singular iteration matrix encountered with step size 0.2 at time 0.0. 
Consider providing more accurate initial conditions. If the problem 
persists, check the model structure and values of parameters."

i dont understand this error. is that a block error or other things

[Birdman]

Can you share your simulink model?

[mehmet can ersoy]

[Birdman]

I meant the file, in .mdl extension.

[mehmet can ersoy]

ok