Warning: layout scale set to 0.5 on input line

Remove the layouts package from your preamble. It's typically used during document design processes, and not as part of your actual document setting.

If you want to see the text block frame, you can use the showframe package or add the showframe option when using geometry.

It just informs you that the pictures drawn by the layouts package will be at scale 1:2. This is the default value and you can change it if you like. See section 1.2.1 of the package documentation.