troubles with deploying to iOS - minimal iOS version

[okk]

I had to redeploy a mobile app that was taken out of the mobile App Store since my certificates were outdated. I use X-Code Version 15.2 and livecode 10.0.3 (rc1) on MacOS 13.6.1. I run into a deployment problem. When deploying with similar settings to the previous version of my app, Transporter complains:

Validation failed (409)
Invalid Bundle. The bundle keskustelupuisto.app does not support the minimum OS Version specified in the Info.plist. (ID: 50b2f2dd-b0c7-4056-a2b0-5f67bb2c53e1)

In the settings for iOS deployment, I can select as the lowest iOS version 12.0, but in the info.plist file the lowest version is given as 8.0. I suspect livecode is doing this automatically. I therefore used the trick with a custom info.plist file that changed the value for the lowest iOS version to 12.0, and the test passed, but now the Transporter app complained about another issue:

Unexpected CFBundleExecutable Key. The bundle at '/Payload/keskustelupuisto.app/IOS/Info.plist' does not contain a bundle executable. If this bundle intentionally does not contain an executable, consider removing the CFBundleExecutable key from its Info.plist and using a CFBundlePackageType of BNDL. If this bundle is part of a third-party framework, consider contacting the developer of the framework for an update to address this issue. (90535)

Now I am lost with what to do. Any tips are welcome! Should I upgrade my MacOs? Thanks!
Oliver