It is not longer supported to post to private channels.
Notice that the channel
-1001204495967
(posting from subreddit
/r/festivals) will be disabled soon, if the owner doesn't set a
@username.
Maybe
@festivals_r2t is still free?
It will be disabled after 25 times, this is try #1.
To continue using this channel please enable others to enjoy the posted content by setting a public
@username for this channel.
For more information or if you need help join
@r2tBots Support Group or check out the
@r2tFeed Channel