In "Confluence 7.4.0", appear the error message:
"Balsamiq Wireframes EULA Violation. This version of Balsamiq Wireframes for Confluence is more recent than what your license allows. Please contact your Confluence administrator so that they can purchase a maintenance license and continue to edit your project."
This situation occurs when I go to Confluence an click in "edit", + sign, "Other macros" an then select "Wireframe".
Additional information: Local version "Balsamiq Wireframes 4.4.6"
This is Liz from Balsamiq. The message usually appears if your license is older and it no longer covers the current version of the app you have installed. If you already have purchase maintenance, you'll have to update the license information with the latest.
I'd be more than happy to help you troubleshoot this. Please send me your information along with license details to email@example.com, and I'll follow up there.