Match columns

Hello guys I have got following code,

the code check column A and B in sheet1 then match them with sheet2 A and B,


Sheet1
3o7XAu5.png


Sheet2
338pTom.png

if column A and B sheet1 match column a and B in sheet2,
take the matching cell in this result,
sheet 1 same row column J the value * the value in column G same row sheet2,

but if there are cells in sheet1 and column A and B that not exists in Sheet2,

I get this error

Runtime error 13 : incompatible types


Compare_cells.xlsm


See attached file.

Could someone help me ?

Thank you in advance

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