i am getting this error , Derivative of state '1' in block 'automobil​04/Automob​il/Integra​tor' at time 0.797323815995324 is not finite.

Unable to reduce the step size without violating minimum step size of 2.8326632275199613E-15 for 1 consecutive times at time 0.79732381599531565. Continuing simulation with the step size restricted to 2.8326632275199613E-15 and using an effective relative error tolerance of 0.00025647321674498704, which is greater than the specified relative error tolerance of 0.0001. This usually may be caused by the high stiffness of the system. Please check the model 'automobil04' or increase the Max consecutive min step size violation parameter in the solver configuration panel [3 similar]

Component: Simulink | Category: Block diagram warning

An error occurred while running the simulation and the simulation was terminated

Caused by:

• Derivative of state '1' in block 'automobil04/Automobil/Integrator' at time 0.797323815995324 is not finite. The simulation will be stopped. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)

Component: Simulink | Category: Block error

I know it is caused by a fraction base that's 0.but i don't know how to solve the problem and what to change.

This is a school project that has input parameters car specs and output the time to 0-100 km/h.Simulation should stop when speed is 100km/h and return the clock time through a block parameter.