Fatal Error: Function name…

Hello,

When updating the WP-Statistics plugins for WordPress version 4.2.2 an internal error that tells me is gender:

[22-Jun-2015 13:22:28 UTC] PHP Fatal error: Function name must be a string in /home/userjgt1/public_html/namedomain.com/wp-content/plugins/wp-statistics/includes/functions/parse-user-agent.php on line 123

Then uninstall it manually from the server, when I want to reinstall it generates the error the following image:

http://s2.subirimagenes.com/imagen/previo/thump_9409213errorfatal.png

Now when I want to install another plugin statistics I get the same error.

As you can resolve this error ?.

Thank you very much
Bogotá

https://wordpress.org/plugins/wp-statistics/