Simulink cannot solve the algebraic loop

Hi I try to simulate a regenerative brake system for an electric vehicle. I recive the following error: Simulink cannot solve the algebraic loop containing 'RGB/DCDC/Solver Configuration/EVAL_KEY/OUTPUT_1_0' at time 144.14439749058252 using the LineSearch-based algorithm due to one of the following reasons: the model is ill-defined i.e., the system equations do not have a solution; or the nonlinear equation solver failed to converge due to numerical issues. To rule out solver convergence as the cause of this error, either a) switch to TrustRegion-based algorithm using set_param('RGB','AlgebraicLoopSolver','TrustRegion') b) reducing the ode23t solver RelTol parameter so that the solver takes smaller time steps.

Actually I did the second recommendation for reduceding the step size but it doesnt work. About the first one I dont know how should I apply it. Please help me to solve the problem.

Regards