1. Save your shop ID as well as your certificates provided in the module’s Back Office.
  2. Delete the Lyra or Lyranetwork folder from /app/code/community.
  3. See next chapter for module installation.

WARNING: Since the module version 1.9.0, a new parameter has been added: Signature algorithm. This parameter is set by default to SHA-256 and must be identical to the one in Merchant Back Office (Settings > Shop). If the algorithm is different, the parameter will have to be modified via the Merchant Back Office.