Chocorean

**Is your feature request related to a problem? Please describe.** With `online-mode=false`, skins are not loaded.

Error while inserting a new player in a database is not always caught

1

it happened to me after a quick fix for #35 when cannot insert because of a unique key, the sql error is not caught, and player will need to register...

``` $ python3 ActEV_Scorer.py Traceback (most recent call last): File "ActEV_Scorer.py", line 752, in parser.parse_args(['-h']) File "/Users/bnc8/miniconda3/envs/ActEV_Scorer_py3.8/lib/python3.8/argparse.py", line 1768, in parse_args args, argv = self.parse_known_args(args, namespace) File "/Users/bnc8/miniconda3/envs/ActEV_Scorer_py3.8/lib/python3.8/argparse.py", line 1800,...

``` $ python3 ActEV_Scorer.py ActEV_SDL_V2 \ -o output \ -s X \ -r Y \ -a activity-index.json \ -f file-index.json \ --ignore-missing-files -SdF -n 6 -t 1024 [Info] Reducing to...