Lippy86

Hi I bought a cbf 125 on a 9 plate a couple days ago when the bike has had time to warm up I.e. done 2-3 miles the management light comes on and stays on the ride is smooth and I don’t think I can hear any dodgy noises I’ve checked oil and topped it up put it away for the day but same problem the next day I know it’s impossible to give a diagnosis from this but can anybody help with the next avenue to explore in the process of illumination?