_APISIGNATURE != '') {       $commpairs['USER'] = str_replace('+', '%0B', trim(MODULE_PAYMENT_PAYPALWPP_SANDBOX_APIPASSWORD));       $commpairs['PWD'] = trim(MODULE_PAYMENT_PAYPALWPP_SANDBOX_APIPASSWORD);       $commpairs['SIGNATURE'] = trim(MODULE_PAYMENT_PAYPALWPP_