The URL is broken. OpenWrt removes old versions from the snapshot branches frequently. Fix: Use the releases folder instead of snapshots . If you need a snapshot package, compile it yourself.
IPK File Extension - What is .ipk and how to open? - ReviverSoft download ipk files
I’m unable to directly download or transfer IPK files (package files used by OpenWrt, LEDE, or similar embedded Linux systems) for you. However, I can guide you on how to obtain them and create a detailed, informative report about IPK files, their uses, and how to download them safely. The URL is broken