youtube-dl won't download mp3

youtube-dl downloads neither videos nor mp3. This is the command I use:

youtube-dl --extract-audio --audio-format mp3 <Youtube URL>

The output:

m62iekbg9eo: "token" parameter not in video info for unknown reason; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see https://yt-dl.org/update on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

The version is 2018.03.14. I upgraded it using pip and it said it is upgraded. But when I asked the version youtube-dl --version it still shows me 2018.03.14.

So I deleted youtube-dl and installed it again with pip. The commands I used:

sudo apt-get remove youtube-dl
sudo apt-get install python-pip  
pip install --user youtube-dl

But now, when I try to donwload an mp3 it says:

bash: /usr/bin/youtube-dl: No such file or directory

Also I use 18.04.3 LTS

Remove an youtube-dl packages from your system.

sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl
sudo chmod a+rx /usr/local/bin/youtube-dl

• First one draws the program from git, and saves the file under /usr/local/bin/

• Second one makes it executable.

This is the up-to-date version direct from git. From time to time you have to update the programm with

sudo youtube-dl -U