Error : Undefined function or method 'Stateflow​.Translate​.translate​' for input arguments of type 'double'.

I m simulating mdl file which contains two embedded matlab function file, it shows the following error

 Error occurred while attempting to call the error callback function 'Stateflow.Translate.translate' of subsystem 'Solar_MPPT_Rloadstudy/PV panel/PV module'. The callback function should take a block handle and error ID as input arguments, and return a string that replaces the error produced within the subsystem. The following error was produced when the error callback function was called: Undefined function or method 'Stateflow.Translate.translate' for input arguments of type 'double'.

Here PV module is embedded fcn(1)

the other embedded matlab fcn(2) in the model started simulating as it shows intermediate output values in the command window

Control flow is embedded fcn(2) gives control input to a simulink subsystem, according to that, this subsystem get input from the embedded fcn(1)

[Kaustubha Govind]

Please contact MathWorks Tech Support about this to check if it might be a bug. It seems to be an error with some internal code.

[V Vaishnavi Kumar]

ya k will try, but the same error occurred before. when the sample time in discrete power gui is reduced and solver type changed to *variable type, robust * it cleared, now i modified some other block for proper output and it again showing error.

[Saurabh]

Any soution for the above mentioned problem????