After making Mac OS update, apps created in Unity can no longer open

Unity Engine
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The application created in Unity that was able to start before OS update is not opened.
Even if you click the application icon while pressing the Control key and select “Open” from the opened menu, it could not be opened.
In the warning text, there was no notation of “Because the provider is unknown”, and it was only displayed as “Cannot open application“ application title ””.
I think that it does not start due to a bug in the application because it is confirmed that it starts on another PC here.
How can I open it?
PC security settings allow all applications.

PC environment that does not start
macOS Catalina
Version 10.15
MaxBook Air (13-inch, Early 2015)
Processor 1.6GHz dual-core Intel Core i5
Memory 8 GB 1600 MHz DDR3
Graphics Intel HD Graphics 6000 1536 MB

Unity version under development
Unity 2018.3.13f1

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To distribute apps without App Store, it requires the developer to have valid Apple Developer ID and get their apps notarized. Otherwise, it has large chance that they’ll get the following error: “XXX can’t be opened because Apple cannot check it for malicious software.”

Give a check on this Apple App Distribution guideline: https://help.apple.com/xcode/mac/current/#/dev033e997ca
Also this blog article may be helpful: why app cannot be opened on mac