Hi. 2 month ago i update confluence to version 6.2.4 And after update i try to install balsamiq mockups/wireframe and get the following error: java.util.zip.DataFormatException: incorrect header check
I Try to install plugin into clean DB - successfull.
Then i try to install plugin in confluence with imported data from xml - unsuccessfull.
I try to install any versions of plugin. all attempts are failed.
How i can fix this problem? Our license is valid until 15 May 2018. Thank you!