Hi Mr. Chanditha,

Try introducing a brief delay outside the faulty signals or subsystems to break the algebraic loop.

Do you mean by simulating it in Simulink or so?, then follow the instructions of Yew-Chung Chak, add a delay.

Again, if it is in Simulink the Diagnostics tools can help identify the algebraic loops in the simulation. See the following link for details:

https://www.mathworks.com/help/simulink/ug/algebraic-loops.html