I ran the diaG by pressing simultaneously SELECT + RESET and if i recall correctly d61 showed error code ”30”. ChatGPT said it was something related to the center stand. The previous owner dropped the bike once on a stand and the front body (plastic) is little bit cracked but everything else is like new.
I didn’t know how to reset it so I let it be. Maybe I’ll try to reset it and see if the ”E” comes back?