Piwik error: DataAccess\\gzcompress undefined function

I’m running Piwik 2.16.1 on a test server on CentOS 6.
after all my RAM was eaten up / getting

end_mm_heap corrupted

erros in my apache/httpd I compiled php-5.6.25 and php-7.0.10 from source.

I compiled the php-versions with:

./configure --with-gd --with-curl --with-apxs2=/usr/sbin/apxs --enable-mysqlnd 
--with-pdo-mysql --enable-zip --with-bz2=/usr/lib64

But now i get (with both php versions) this errors:

Call to undefined function Piwik\\DataAccess\\gzcompress()

any ideas?

Hi there,

Does the Piwik System check show all green ? if it does show green, or if the system check does not help you solve t his problem, please create an issue in our tracker: Issues · matomo-org/piwik · GitHub and we will improve it