Swimbot Error

Traceback (most recent call last):
  File "C:\Users\wmiller\AppData\Local\Programs\Python\Python37\lib\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "c:\Users\wmiller\OneDrive - Goddard Technologies\Desktop\Swimbot\FWA_Evo.py", line 145, in addclan
    resp = await COC.Clan(clantag).clan_war_status
  File "c:\Users\wmiller\OneDrive - Goddard Technologies\Desktop\Swimbot\COC.py", line 46, in __init__
    self.clantag = format_tags(clantag)
  File "c:\Users\wmiller\OneDrive - Goddard Technologies\Desktop\Swimbot\COC.py", line 14, in format_tags
    return re.sub(r'[#| |]',r'',tag)
  File "C:\Users\wmiller\AppData\Local\Programs\Python\Python37\lib\re.py", line 192, in sub
    return _compile(pattern, flags).sub(repl, string, count)
TypeError: expected string or bytes-like object