Purchased KH Coder for Mac, can't get it to work (Download is not complete)

[NARFraser]

Version number of KH Coder

no information

Details about the error or the problem

OS
macSonoma version 14.6.1.

The error message as detailed as possible

I followed the instructions as stated here: https://khcoder.net/en/mac_com.html

I downloaded and installed XQuartz. Then I restarted my computer. After that, I downloaded the khcoder-302-macdl ZIP folder. Yet, after multiple attempts at downloading and installing the product, I cannot get it to work.

To Reproduce
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Expected behavior
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What happens if you perform the same operation with the tutorial file (Anne.xls)
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Files to Reproduce the Error
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Language of the Text
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Type of the data file
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CPU
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Contents of the console window

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[ko-ichi-h]

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Once complete, the file will be renamed to "khcoder-302-macdl" from "Unconfirmed 123456.crdownload".