Bought a karma license, but when updating the License key, I get this error- "Your add-on license is invalid. Ensure that the entire add-on license, including line breaks, is exactly as provided." Am I getting the format wrong?

[Luiz Maia]

Hi there,

Is this the software you're referring? https://marketplace.atlassian.com/plugins/de.communardo.confluence.plugins.karma

Please make sure you're inserting the correct license. You can access the license information on my.atlassian.com, logging in with your account. In case the same behaviour persists, please contact the vendor support at https://support.communardo.de/display/support/Support+Center.

Regards,
LM