A few different errors

[Phantom05617]

When I launch the overlay before I launch osu!, this is what it says

If I launch osu! before the overlay and switch songs from nekodex - circles, this is what it shows

[C0D3-M4513R]

If you mean the extra text in the first picture: I usually ignore that. those errors are generally harmless. If you mean the failed in inject error, that is likely something more technical. For that I cannot provide an answer.