April 10, 2014 at 18:45 /
There is a bug with currency ID, thats why Polish Zloty is not displayed in currency select form.
It is located in easyReservations_admin_settings.php file, line 251.
Bug looks like that: ‘#122;ł’ => ‘Polish Zloty’,’#122;ł′ => ‘Israeli Sheqel’.
ID #122 is a key for both Polish and Israeli currency.
I do not know which ID should have each of currency, but removing Israeli Sheqel key and value lets me display Polish currency.