Error after update from 96ac58866e19101c50e1198349699a2a2416cb60 to 29c7d2449e122f6483f09fdda7a03a73d5d24ccb:
There is an error. Please report the message (Piwik 2.0.4-b5) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).
Notice: Undefined index: salt in /var/www/_my_site_/core/Updates/2.0.4-b5.php on line 96
Backtrace -->
#0 Piwik\Error::errorHandler(...) called at [/var/www/_my_site_/core/Updates/2.0.4-b5.php:96]
#1 Piwik\Updates\Updates_2_0_4_b5::migrateConfigSuperUserToDb(...) called at [/var/www/_my_site_/core/Updates/2.0.4-b5.php:45]
#2 Piwik\Updates\Updates_2_0_4_b5::update(...) called at [:]
#3 call_user_func(...) called at [/var/www/_my_site_/core/Updater.php:168]
#4 Piwik\Updater->update(...) called at [/var/www/_my_site_/plugins/CoreUpdater/Controller.php:390]
#5 Piwik\Plugins\CoreUpdater\Controller->loadAndExecuteUpdateFiles(...) called at [/var/www/_my_site_/plugins/CoreUpdater/Controller.php:372]
#6 Piwik\Plugins\CoreUpdater\Controller->doExecuteUpdates(...) called at [/var/www/_my_site_/plugins/CoreUpdater/Controller.php:308]
#7 Piwik\Plugins\CoreUpdater\Controller->runUpdaterAndExit(...) called at [/var/www/_my_site_/plugins/CoreUpdater/Controller.php:275]
#8 Piwik\Plugins\CoreUpdater\Controller->index(...) called at [:]
#9 call_user_func_array(...) called at [/var/www/_my_site_/core/FrontController.php:519]
#10 Piwik\FrontController->doDispatch(...) called at [/var/www/_my_site_/core/FrontController.php:88]
#11 Piwik\FrontController->dispatch(...) called at [/var/www/_my_site_/index.php:62]