Hello @itsestella,
I appreciate you getting in touch. I just need to confirm if your InDesign file is saved as a cloud document. When a file is stored in the cloud, the Package option will be grayed out. Packaging is only possible for files saved locally on your computer. You can use the Save As function to save it to a local folder on your drive and then check the Package option once more.
For your reference, here’s additional information regarding this issue:
Ref: Preflight files in InDesign before handoff to a service provider, Solved: The Package menu is inactive - Adobe Product Community - 15118980, https://adobe.ly/4iqIxxF
Please let me know after you attempt to save the file locally and if the option becomes active again.
I'm happy to assist further if necessary!
Abhishek