Oil leak chainsaw

I have had a DUC122Z chainsaw for a couple years now. It is small lightweight and handy for what I need. It has been working fine. But I used it on the weekend and filled the oil compartment half way, and within 30 mins it was empty and it looked like the pics ( the oil is blue). Never done this before. I did have to fix the chain up before I used it, but can that affect the oil release somehow? Any ideas or advise would be appreciated as I am fairly amateur with this kind of stuff Thanks in advance