Piwik Error after upgrade to PHP7


Today I have upgraded php to the latest Version php7.

Well, all Websites are ok but Piwik :frowning:
I get this error:
An error occurred

Call to undefined function twig_lower_filter()

What can I do to fix it?

Are you using the latest version of Piwik?


I think so, there was no Information about an update.


has no one an idea?

I would try replacing the /vendor/twig directory with a fresh copy from your downloaded Piwik install files.

The function is found in /vendor/twig/twig/lib/Twig/Extension/Core.php .

Actually, you might be wise to replace the entire /vendor directory. Who knows what else is missing?


i tried it out, but the error still appears.

I had to completly new install piwik. Now it is working again, but lost the data. Well, thank you for your reply!