It happens when a slider/spinner is overlapped with at least 2 notes, and the timing of its head is too close to the first overlapping note.
Each of this kind of slider/spinner causes the player to lose one life at the end of a map in single mode.
0:00 - 0:30 Mapping
0:30 - 0:40 First trying and failed
0:40 - 0.46 First trying replaying and passed
0:50 - 0:56 Auto mod
0:57 - 1:03 Making the timing of a note later
1:06 - 1:18 Second trying and passed