Power Query does not merge multiple identical file

Hi friends

I have folder which includes many identical excel files. Their columns and structure are the same. But when i try to import and merge thise files, Power query does not imprt them and for some files it gives error (attaches the picture)

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As a sample file I upload two excel files which one of them ok but another gives error. There you can see that they are same.

I could not understand the reason. Please help me. Thank you in advance

After analyzing a bit, I recognized that sheet names are different. After changing sheet names the problem has been solved.

Thank you. ))

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