We have tried 2 times to upgrade to version 2.16.1.
1:st try) Tried the automatic way through Piwiks settings screen.
2:nd try) by manually upload/replace files on server.
At both times when going to my installation (ie example.net/piwik/) and it tries to update the database I meet a message saying something like this:
"Coding of the contents
Page can not be displayed because it uses a type of compression that is invalid or unsupported .
Contact the website owner and inform them of this problem."
*Above message is accordingly to google translate from swedish (as we speak).
What´s wrong and who isit solved?