OK I can fix it with the file /etc/opkg/distfeeds.conf
After, no problem with opkg update, but if I have to list upgradable package :
pkg_hash_check_unresolved : cannot find dependency kernel (= 5.4.143-1…) for kmod-ipt-offload
The update errors you are encountering are normal, and you can disregard them. Various repositories are meant for different devices, and certain packages may be unnecessary for specific devices. As a result, some updates might fail on your particular device, but it should not pose any issues unless all updates fail.
If these errors are causing issues for you, like messing up your custom scripts or if you just don’t want to see them, you can comment out the feeds that causing the errors in the /etc/opkg/distfeeds.conf file. There are plans to address this in the future to avoid confusion like in this case.