Then in TWRP, go to “Advanced” > “File manager” and browse to : / > “data” > “lineageos_updates”.
You should have 3 files (because you have tried to download 3 updates.
Click on one of them, then on “Delete” ou “Remove”.
Do this for the 3 files.
Go back in /e/ and try to download and install an update.
Ask if you have any doubt.
You can also look at that howto in order to see how to install an update via TWRP if needed :