mauriziomagnino

if you delete valute USD
if you dont delete language english (ex for GB)
if you use USE_DEFAULT_LANGUAGE_CURRENCY = true
you have error to currency


https://github.com/osCommerce/oscommerce2/blob/master/catalog/includes/application_top.php
line 285 to 293

// currency
  if (!tep_session_is_registered('currency') || isset($HTTP_GET_VARS['currency']) || ( (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') && (LANGUAGE_CURRENCY != $currency) ) ) {
    if (!tep_session_is_registered('currency')) tep_session_register('currency');

    if (isset($HTTP_GET_VARS['currency']) && $currencies->is_set($HTTP_GET_VARS['currency'])) {
      $currency = $HTTP_GET_VARS['currency'];
    } else {
      $currency = (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') ? LANGUAGE_CURRENCY : DEFAULT_CURRENCY;
    }
  }

modify to

// currency
  if (!tep_session_is_registered('currency') || isset($HTTP_GET_VARS['currency']) || ( (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') && (LANGUAGE_CURRENCY != $currency) ) ) {
    if (!tep_session_is_registered('currency')) tep_session_register('currency');

    if (isset($HTTP_GET_VARS['currency']) && $currencies->is_set($HTTP_GET_VARS['currency'])) {
      $currency = $HTTP_GET_VARS['currency'];
    } else {
      $currency = (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') ? LANGUAGE_CURRENCY : DEFAULT_CURRENCY;
    }
  }
// error currency = 0
  if (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') {
    $currency_query = tep_db_query("select code from " . TABLE_CURRENCIES . " where code like '" . LANGUAGE_CURRENCY . "'");
    $currency_result = tep_db_fetch_array($currency_query);
    if (($currency_result['code'] == NULL )||($currency_result['code'] == '' )) $currency = DEFAULT_CURRENCY ;
  }

sorry for my english