Error when trying to reach index.php

Support & Bugs
1

Hi!
I get an Error-message when trying to reach my piwik-installation.
I shortly upgraded to php5.5, because my wp-piwik did not work at all.

The error-message shows the following lines:


Notice: Undefined index: nd92ae4 in /mnt/web1/e3/63/5*********/htdocs/Piwik_02/core/testMinimumPhpVersion.php on line 1

Undefined index: n7f240c 
in '/mnt/web1/e3/63/5*********/htdocs/Piwik_02/core/Menu/Top.php' at the line 1

#0  Piwik_ErrorHandler(...) called at [/mnt/web1/e3/63/5*********/htdocs/Piwik_02/core/Menu/Top.php:1]
#1  require_once(...) called at [/mnt/web1/e3/63/5*********/htdocs/Piwik_02/core/PluginsManager.php:24]
#2  require_once(...) called at [/mnt/web1/e3/63/5*********/htdocs/Piwik_02/core/FrontController.php:18]
#3  require_once(...) called at [/mnt/web1/e3/63/5*********/htdocs/Piwik_02/core/Loader.php:72]
#4  Piwik_Loader::loadClass(...) called at [/mnt/web1/e3/63/5*********/htdocs/Piwik_02/core/Loader.php:109]
#5  Piwik_Loader::autoload(...) called at [:]
#6  spl_autoload_call(...) called at [/mnt/web1/e3/63/5*********/htdocs/Piwik_02/index.php:51]
2

I updated my piwik-installation via ftp today … getting this message now:


 There is an error. Please report the message (Piwik 2.5.0) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).

Notice: Undefined variable: _POST in /mnt/web1/e3/63/51136263/htdocs/Piwik_02/core/Updates/file.php on line 1

Backtrace -->

#0 Piwik\Error::errorHandler(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/core/Updates/file.php:1]
#1 require_once(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/core/Updater.php:146]
#2 Piwik\Updater->getSqlQueriesToExecute(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/plugins/CoreUpdater/Controller.php:335]
#3 Piwik\Plugins\CoreUpdater\Controller->runUpdaterAndExit(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/plugins/CoreUpdater/Controller.php:302]
#4 Piwik\Plugins\CoreUpdater\Controller->index(...) called at [:]
#5 call_user_func_array(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/core/FrontController.php:576]
#6 Piwik\FrontController->doDispatch(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/core/FrontController.php:86]
#7 Piwik\FrontController->dispatch(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/core/dispatch.php:34]
#8 require_once(...) called at [/mnt/web1/e3/63/5*******/htdocs/Piwik_02/index.php:47]


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