Problem in running .mod file

Dear Mr. jpfeifer,
Hope you are doing well. I switched my laptop because there were issues in my previous laptop. But now when I run my .mod file i gives me the following error. I don’t know what to do with this error. I need your help.

dynare KM_debt_AEJ.mod
Using 64-bit preprocessor
Starting Dynare (version 4.6.1).
Calling Dynare with arguments: none
Starting preprocessing of the model file …
Found 72 equation(s).
Evaluating expressions…done
Computing static model derivatives (order 1).
Computing dynamic model derivatives (order 1).
Processing outputs …
Preprocessing completed.

Undefined function ‘eval’ for input arguments of type ‘cell’.

Error in Kalman_Gain (line 16)
eval([ paramname ’ = M_.params(’ int2str(i) ‘);’]);

Error in KM_debt_AEJ.driver (line 824)
[KV] = Kalman_Gain

Error in dynare (line 293)
evalin(‘base’,[fname ‘.driver’]) ;

Your function seems to be tailored to Dynare 4.5. In Dynare 4.6, it needs to be curly braces:

M_.params{’ int2str(i) ‘};

thank you so much dear Mr pfeifer for your kind reply. Your are always very helpful.
stay blessed!