Modpack version
1.83

Issue
upon pressing the "build" button inside of the satellite builder, game crashes. The crash doesn't happen unless all the required items shown the screenshot below are present

Logs
crash-2021-09-01_16.00.44-client(1).txt
plicable

Thanks for the report! Would you mind updating Advanced Rocketry and Lib Vulpes, and see if that resolves the issue? It should be fixed in the second latest release because of this: Advanced-Rocketry/AdvancedRocketry#2108

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have or find the answers we need so that we can investigate further.