Couple of possibilities that i can see......
You didn't use adhesive and your print either warped up causing the nozzle to hit it, (it's kind of hard to tell from the picture, but it looks like you've got PLA stuck to the outside of it), or your supports got knocked over, and you weren't watching, and the nozzle just kept printing over thin air for a while. (Bird's nest.)
Try using some adhesive (hairspray or gluestick), take the plate temp down to 50°C and the extruder temp down to 205°C. The hotter you print PLA, the slower it cools, and it needs to cool immediately
after it exits the nozzle, or it causes warping problems. (Pretty sure the troll or the base warped up and hit the nozzle, causing the bird's nest.)
Another thing you can do to cool it off faster is remove the fan guard on the bed fan. (Just be careful not to stick filament in the fan when you're loading it.)
Also, for that particular object, you will have to print that troll shape with a raft. It's curved upwards, and it's going to have a very unattractive finish on the bottom because of it. But in order to secure that shape to the bed, it's going to have
to be a raft - support is just not going to be enough by itself. It will keep getting knocked over.
Got to tell you, i would have more
than a little trouble printing that shape. Your best bet would probably be to cut it into pieces, print the parts with the flat (cut) side on the bed, and then glue it together after.
Print the base separate from the troll. When you print the troll, duplicate it in S3D, double click the copy and flip it over, and drop it onto the table, then double click on, and sink both the original and the duplicate under the bed by half. Anything below the bed doesn't print - it effectively slices the model in half.
Then create your supports, it won't need a raft.