I know how to use Shell a little but I don't understand this console error
Solution
It looks like the connection to your package mirror timed out while you were trying to update your packages.
So it couldn't fetch a new package list, and fell back on using the old one.
If this issue persists you can use
So it couldn't fetch a new package list, and fell back on using the old one.
If this issue persists you can use
termux-change-repo to select a different package mirror.