Action Tracker Plugin HASH reference error

| 2013-03-01T10:46:17Z warning | Can't use an undefined value as a HASH reference at /var/lib/foswiki/lib/Foswiki/Plugins/ActionTrackerPlugin/Options.pm line 15.
 at /var/lib/foswiki/lib/Foswiki/Plugins/ActionTrackerPlugin/Options.pm line 15
        Foswiki::Plugins::ActionTrackerPlugin::Options::load() called at /var/lib/foswiki/lib/Foswiki/Plugins/ActionTrackerPlugin.pm line 487
        Foswiki::Plugins::ActionTrackerPlugin::lazyInit('System', 'ActionTrackerPlugin') called at /var/lib/foswiki/lib/Foswiki/Plugins/ActionTrackerPlugin.pm line 430
        Foswiki::Plugins::ActionTrackerPlugin::_handleActionSearch('Foswiki=HASH(0x164eac0)', 'Foswiki::Attrs=HASH(0x268b478)', 'ActionTrackerPlugin', 'System', 'Foswiki::Meta=HASH(0x224b928)') called at /var/lib/foswiki/lib/Foswiki/Func.pm line 609
        Foswiki::Func::__ANON__('Foswiki=HASH(0x164eac0)', 'Foswiki::Attrs=HASH(0x268b478)', 'Foswiki::Meta=HASH(0x224b928)') called at /var/lib/foswiki/lib/Foswiki.pm line 3145
        Foswiki::_expandMacroOnTopicRendering('Foswiki=HASH(0x164eac0)', 'ACTIONSEARCH', 'topic=ActionTrackerPlugin who=WikiGuest header="&vbar;Who&vbar;Due&vbar;Stat...', 'Foswiki::Meta=HASH(0x224b928)') called at /var/lib/foswiki/lib/Foswiki.pm line 3021
        Foswiki::_processMacros('Foswiki=HASH(0x164eac0)', '---+!! Action Tracker Plugin\x{a}<!--\x{a}\x{a}   PLEASE DO NOT EDIT THIS...', 'CODE(0x15a77e0)', 'Foswiki::Meta=HASH(0x224b928)', 16) called at /var/lib/foswiki/lib/Foswiki.pm line 2818
        Foswiki::innerExpandMacros('Foswiki=HASH(0x164eac0)', 'SCALAR(0x15b30a0)', 'Foswiki::Meta=HASH(0x224b928)') called at /var/lib/foswiki/lib/Foswiki.pm line 3327
        Foswiki::expandMacros('Foswiki=HASH(0x164eac0)', '---+!! Action Tracker Plugin\x{a}<!--\x{a}\x{a}   PLEASE DO NOT EDIT THIS...', 'Foswiki::Meta=HASH(0x224b928)') called at /var/lib/foswiki/lib/Foswiki/Meta.pm line 3103
        Foswiki::Meta::expandMacros('Foswiki::Meta=HASH(0x224b928)', '---+!! Action Tracker Plugin\x{a}<!--\x{a}\x{a}   PLEASE DO NOT EDIT THIS...') called at /var/lib/foswiki/lib/Foswiki/UI/View.pm line 412
        Foswiki::UI::View::_prepare('---+!! Action Tracker Plugin\x{a}<!--\x{a}\x{a}   PLEASE DO NOT EDIT THIS...', 'Foswiki::Meta=HASH(0x224b928)', 0) called at /var/lib/foswiki/lib/Foswiki/UI/View.pm line 392
        Foswiki::UI::View::view('Foswiki=HASH(0x164eac0)') called at /var/lib/foswiki/lib/Foswiki/UI.pm line 316
        Foswiki::UI::__ANON__() called at /usr/share/perl5/Error.pm line 416
        eval {...} called at /usr/share/perl5/Error.pm line 408
        Error::subs::try('CODE(0xc97f60)', 'HASH(0x164e6a0)') called at /var/lib/foswiki/lib/Foswiki/UI.pm line 435
        Foswiki::UI::_execute('Foswiki::Request=HASH(0x1627b10)', 'CODE(0x1627648)', 'view', 1) called at /var/lib/foswiki/lib/Foswiki/UI.pm line 274
        Foswiki::UI::handleRequest('Foswiki::Request=HASH(0x1627b10)') called at /var/lib/foswiki/lib/Foswiki/Engine/CGI.pm line 41
        Foswiki::Engine::CGI::run('Foswiki::Engine::CGI=HASH(0xfc91f0)') called at /var/lib/foswiki/bin/view line 24.
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