500 Internal Server Error

Argument 1 passed to makeRSSFeed() must be of the type int, string given, called in /home/vvukkfcf/public_html/varastettu.net/index.php on line 887 (0)

#0 /home/vvukkfcf/public_html/varastettu.net/index.php(887): makeRSSFeed('FEED_LIMIT', 'fi')
#1 /home/vvukkfcf/public_html/varastettu.net/flight/core/Dispatcher.php(169): {closure}('fi')
#2 /home/vvukkfcf/public_html/varastettu.net/flight/core/Dispatcher.php(145): flight\core\Dispatcher::callFunction(Object(Closure), Array)
#3 /home/vvukkfcf/public_html/varastettu.net/flight/Engine.php(339): flight\core\Dispatcher::execute(Object(Closure), Array)
#4 /home/vvukkfcf/public_html/varastettu.net/flight/core/Dispatcher.php(198): flight\Engine->_start()
#5 /home/vvukkfcf/public_html/varastettu.net/flight/core/Dispatcher.php(144): flight\core\Dispatcher::invokeMethod(Array, Array)
#6 /home/vvukkfcf/public_html/varastettu.net/flight/core/Dispatcher.php(49): flight\core\Dispatcher::execute(Array, Array)
#7 /home/vvukkfcf/public_html/varastettu.net/flight/Engine.php(92): flight\core\Dispatcher->run('start', Array)
#8 /home/vvukkfcf/public_html/varastettu.net/flight/core/Dispatcher.php(198): flight\Engine->__call('start', Array)
#9 /home/vvukkfcf/public_html/varastettu.net/flight/Flight.php(77): flight\core\Dispatcher::invokeMethod(Array, Array)
#10 /home/vvukkfcf/public_html/varastettu.net/index.php(984): Flight::__callStatic('start', Array)
#11 {main}