Installed it out of curiosity, and I'm getting:
% pysol
Traceback (most recent call last):
File "/usr/bin/pysol", line 36, in <module>
from pysollib.main import main # noqa: E402,I202
File "/usr/lib/python3.8/site-packages/pysollib/main.py", line 30, in <module>
from pysollib.app import Application
File "/usr/lib/python3.8/site-packages/pysollib/app.py", line 31, in <module>
from pysollib.gamedb import GAME_DB, GI, loadGame
File "/usr/lib/python3.8/site-packages/pysollib/gamedb.py", line 28, in <module>
from pysollib.mfxutil import Struct, print_err
File "/usr/lib/python3.8/site-packages/pysollib/mfxutil.py", line 146, in <module>
uclock = time.clock
AttributeError: module 'time' has no attribute 'clock'
Which apparently is because python-3.8 has deprecated time.clock(). This has to be fixed upstream or you could try fixing it yourself by updating the clock function. I'm not sure though why your executable has vanished.