unable to read MAT-file

I tried running this code using trained data but I am facing this error:

Error using load

Unable to read MAT-file C:\Users\AmirReza\AppData\Local\Temp\indianPines\trainedIndianPinesCSCNN.mat. Not a binary

MAT-file. Try load -ASCII to read as text.

Error in CSCNN (line 78)

load(fullfile(dataFolder,'trainedIndianPinesCSCNN.mat'));

Also I can't find this dataset in support files. How can I solve this problem?