Notice: Array to string conversion in /core/dispatch.php on line 37

http://analytics.bhelp.com/index.php?module=API&method=Live.getVisitorProfile&idSite=3304&visitorId=131df3fc5eca7b77&format=PHP&token_auth=*

Piwik 2.2.0
Notice: Array to string conversion in /core/dispatch.php on line 37

Backtrace -->

#0 Piwik\Error::errorHandler(…) called at [/core/dispatch.php:37]
#1 require_once(…) called at [/index.php:47]

Please add parameter &serialize=1, this should fix it