Plex connection refused

i’ve just realized that starting my rclone i have this error connectiong to plex.

ERROR : plex: websocket.Dial ws://localhost:32400/web/index.html/:/websockets/notifications?X-Plex-Token=XXXXXXXXXXXXXXXXX: dial tcp connect: connection refused

How can i find out what the problem is?

My config is:

type = cache
remote = XXXXXXX:
plex_url = http://localhost:32400/web/index.html
plex_username = xxxxx@xxxxxxx.xx
plex_password = xxxxxxxxxxxx
chunk_size = 256M
info_age = 240h
chunk_total_size = 50G
plex_token = xxxxxxxxxxxxxxxxx

I think i solved.
I changed plex_url = http://localhost:32400/web/index.html
to plex_url = http://localhost:32400