Warning: substr_compare(): The start position cannot exceed initial string length  in /var/www/webroot/ROOT/app/code/local/Amasty/Shopby/Helper/Url.php on line 484

#0 [internal function]: mageCoreErrorHandler(2, 'substr_compare(...', '/var/www/webroo...', 484, Array)
#1 /var/www/webroot/ROOT/app/code/local/Amasty/Shopby/Helper/Url.php(484): substr_compare('', '.html', -5)
#2 /var/www/webroot/ROOT/app/code/local/Amasty/Shopby/Model/Url/Parser.php(50): Amasty_Shopby_Helper_Url->checkRemoveSuffix('')
#3 /var/www/webroot/ROOT/app/code/local/Amasty/Shopby/Model/Url/Parser.php(25): Amasty_Shopby_Model_Url_Parser->prepareInitialData('')
#4 /var/www/webroot/ROOT/app/code/local/Amasty/Shopby/Controller/Router.php(66): Amasty_Shopby_Model_Url_Parser->parseParams('')
#5 /var/www/webroot/ROOT/app/code/local/Amasty/Shopby/Controller/Router.php(29): Amasty_Shopby_Controller_Router->matchForwardShort()
#6 /var/www/webroot/ROOT/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Amasty_Shopby_Controller_Router->match(Object(Mage_Core_Controller_Request_Http))
#7 /var/www/webroot/ROOT/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#8 /var/www/webroot/ROOT/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#9 /var/www/webroot/ROOT/index.php(96): Mage::run('', 'store')
#10 {main}