Clear the cache from your web browser and try to download again. If that does not work then go to this TurboTax website to download the edition you purchased - https://turbotax.intuit.com/personal-taxes/cd-download/install-turbotax/
Do you meet the 2024 Turbo Tax Desktop Download System Requirements
Windows 10 or later or Mac OS Ventura 13 or later (newer).
https://turbotax.intuit.com/personal-taxes/cd-download/tta-system-requirements
How to get started with the Desktop program, install and activate it
https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/download-software-turbotax-com/L7u9oLEkq_US_en_US?uid=luqgvzrd
If you are having trouble going to installturbotax.com, you can go here to start the download
https://turbotax.intuit.com/personal-taxes/cd-download/install-turbotax