Why do I see "error code 34" when I try to activate Nik Collection?

This information applies to version(s): 2018, 2, 3, 4, 5

Error code (34) indicates that the activation code you entered was not correct.  This may be due to a typing error (unwanted spaces are the most common cause of this), or you are using a code that does not match the software version you are trying to activate.  Please copy and paste the code shown in your DxO account.