Hi,

Plugin installation was changed in version 2024.1.0, you can read the updated documentation about it here: https://aximmetry.com/learn/virtual-production-workflow/preparation-of-the-production-environment-phase-i/obtaining-graphics-and-virtual-assets/creating-content/creating-content-for-aximmetry-de/ue5-how-to-install-third-party-code-plugins-for-unreal-editor-for-aximmetry/
Complete the prerequisites outlined in the documentation to resolve the error.

Warmest regards,

@eifert: The Text 3D plugin comes as default with UE5, so it shouldn’t require any additional installation steps.