Issues getting stories from email

[Myo B]

Hi! I've been having issues getting stories from gmail for a couple of days. I keep getting an authentication error. The weird thing is that I haven't changed anything (either on the account or in fanficfare) and it was working perfectly fine before. I don't know if there's any known issue or something changed recently that I'm not aware of... I haven't been able to figure it out 

calibre, version 8.13.0

Traceback (most recent call last):
  File "calibre_plugins.fanficfare_plugin.fff_plugin", line 594, in get_urls_from_imap_menu
    url_list = get_urls_from_imap(prefs['imapserver'],
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/........../Library/Preferences/calibre/plugins/FanFicFare.zip/fanficfare/geturls.py", line 197, in get_urls_from_imap
    status = mail.login(user, passwd)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "imaplib.py", line 621, in login
imaplib.IMAP4.error: b'[AUTHENTICATIONFAILED] Invalid credentials (Failure)'