Update

If the payment module has already been installed, you must delete the payment_lyra folder from the addons directory.

The addons directory can be found via:

  • /server/odoo/addons/ for Windows servers.
  • /var/lib/odoo/addons/[VERSION]/ for Linux servers.

If there are no addons in any of these paths, check the addon_path line in the odoo.conf file. The path indicates the location of addons.