Syntax error in config.ini.php

Hello,

I’m really baffled by this but “all of a sudden” my piwik 3 installation stopped working.
I have piwik 3.0.1 binaries running against php 5.6.30.

Unable to read INI file {C:\Inetpub\WWWRoot\piwik/config/config.ini.php}: Syntax error in INI configuration: Your host may have disabled parse_ini_file().

The parse_ini_file() is not disabled.
I also tried deleting the file to reconfigure piwik, I get to the setup wizard but while checking the system the php processes start spinning until they timeout of execution so I’m basically stuck.

Any spare ideas?

Thank you.
Edoardo.