This user apparently lost some reputation points and now the reputation is stuck at "1". On checking the reputation graph, OP peaked at 295 points and then "lost" 93 points. So, total reputation should be 202 but the reputation is showing "1". I am aware that the user had some of his answer deleted but the reputation shouldn't plunge to 1.
What was this reputation change and why it isn't showing in the timeline? And why the total reputation is stuck at 1?