ERROR ITMS-90023: "Missing required icon file...

Today I cannot upload the Archive.zip to iTune Connect or upload the ipa file through application loader because of the icon error.

I can do the upload in last week without any problems. Please help!

Below you can check the log from B4i uploader:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Uploading ipa file.
Submitting app (this step can take several minutes to complete).
Error: 2016-06-02 15:34:23.980 altool[2829:71555444] Error:
...
[2016-06-02 15:34:21 BST] <main> DBG-X: parameter...

ERROR ITMS-90023: "Missing required icon file...

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