ValueError (substring not found)

[SimplePotat2]

Currently running this project on Windows 10, and the following issue emerged for me:
Traceback (most recent call last):
File "C:\Users\REDACTED\darkshot\main.py", line 88, in main
for new_data, link in run_algo(algo=algo, min=cfg["min"], limit=limit, chars=cfg["chars"], stateFile=cfg["stateFile"], resume=resume):
File "C:\Users\REDACTED\darkshot\lib\utils.py", line 97, in run_algo
for i in algo(limit, chars, min=min):
File "C:\Users\REDACTEDR\darkshot\lib\generators.py", line 45, in descending
nbs = [chars.index(c) for c in limit][::-1]
File "C:\Users\REDACTED\darkshot\lib\generators.py", line 45, in
nbs = [chars.index(c) for c in limit][::-1]
ValueError: substring not found

Error detected (ValueError).
State saved ! (resume.json)