In my case(Ubuntu 18.04/Awesome wm), pulseaudio-module-bluetooth is already installed too.

Run the following commands:

# FIX Permissions
$ sudo chown -R $USER:$USER $HOME/
$ sudo apt-get --purge --reinstall install pulseaudio-module-bluetooth alsa-base pulseaudio
$ mv ~/.config/pulse ~/.config/pulse.old
# and reboot

In my case(Ubuntu 18.04/Awesome wm), pulseaudio-module-bluetooth is already installed too.

Run the following commands to fix permissions:

sudo chown -R $USER:$USER $HOME/
sudo apt-get --purge --reinstall install pulseaudio-module-bluetooth alsa-base pulseaudio
mv ~/.config/pulse ~/.config/pulse.old

Then reboot your system.