Doesn't pairs on Raspberry Pi 3 B

[Boxiogral]

it stays on
listening for connections... (press wii u's sync button)

[GaryOderNichts]

Any errors?
The initial pairing can take a bit. Try cancelling the pairing and trying again.

[Boxiogral]

No errors, waited 10 minutes and still doesn't pair

[Boxiogral]

After some tries, this error appeared:

Using latest Raspberry Pi OS Lite

[Boxiogral]

I managed to get the Wii U Bluetooth MAC address, tried with the mac argument, and now this error appears:

[GaryOderNichts]

Looks like the Wii Remote still isn't paired to the console. Not sure what's preventing it.
You could try clearing paired remotes in System Settings.

[Boxiogral]

I tried what you said, and also Ubuntu on the Pi, now it managed to send the payload, but when i open a app, this error appears:

[GaryOderNichts]

What kernel binary are you using?
If you're using the loadfile binary make sure you have a valid launch.rpx on the root of your SD card.