Parameter dimension error in simulink (variable sized mode to fixed size mode)

I am getting this below error (detailed in attached snap). could anyone help me to get rid from this error. the error appear when I attach my customized counter program in enabled subsystem.

"Simulink cannot propagate the variable-size mode from the output port 1 of 'ADC_Sign_E/Enabled Subsystem/Enable' to the input port 2 of 'ADC_Sign_E/Enabled Subsystem'. This input port expects a fixed-size mode. The variable-size mode originates from 'ADC_Sign_E/ADC2/ADC1 /MATLAB Function1'.Examine the configurations of 'ADC_Sign_E/Enabled Subsystem' for one of the following scenarios: 1) the block does not support variable-size signals; 2) the block supports variable-size signals but needs to be configured for them. This message is related to a hidden SignalConversion block. This block is added for block 'ADC_Sign_E/Enabled Subsystem/Enable' at input port enable as result of block insertion or expansion. The hidden block's parameter 'Output' is set to 'Signal copy' Consider manually inserting such a block to debug the problem."

Thanks