Warning: 89 - Invalid or expired token.

Warning: 89 - Invalid or expired token.

Hi. I'm having troubles when i´m wanting to download tweets with rtweet.

The first time I use the <- search_tweets () function I was able to download 3000 tweets.

The following occasions I was no longer able to download tweets and it prompted "Warning: 89 - Invalid or expired token." This, despite the fact that I start to renew the keys and tokens of my twitter app.
This happens despite the fact that I put the link http://127.0.0.1:1410 in the Callback URLs of my Twitter app

Other times, the console tells me that it cannot find functions like "search_tweets () or" "setup_twitter_oauTH"

I would greatly appreciate your help.