Irregular errors after installation

Support & Bugs
1

Hello

I just installed the Piwik and everithing went fine.
But sometimes it happens that I can not log me in. instead a receive always the same error message:

Warning: require_once(upgradephp/upgrade.php) [function.require-once]: failed to open stream: No such file or directory in /srv/www/vhosts/dacage.com/subdomains/lavuelta/httpdocs/piwik/core/testMinimumPhpVersion.php on line 88

Fatal error: require_once() [function.require]: Failed opening required ‘upgradephp/upgrade.php’ (include_path=’.:.:.:.:/usr/share/php5:/usr/share/php5/PEAR’) in /srv/www/vhosts/dacage.com/subdomains/lavuelta/httpdocs/piwik/core/testMinimumPhpVersion.php on line 88

after several refreshing of the page, I come to the log in and everithing works fine again. The same errormessage I receive from time to time in some of my widgets.

I can not understand why this error comes only from time to time and not always.
Do you have any solution for me?

thx for your help

Marc

2

When it fails, we can see that the include path hasn’t been set properly – i.e., it doesn’t include the piwik folders (core, libs, and plugins). You should ask your web hosting provider for support.

For example, how is your site provisioned? Is it possible it’s being served by more than one server? (e.g., round robin DNS)

How has php been configured? Has set_include_path() been disabled? Is there a restriction with open_basedir? etc.