Update WaitForPowerDeliveryReq.java

Changed the error log into  a warn log an EVSE-initiated shutdown could be the cause for the corresponding DC_EVSE_StatusCode.

RISE-V2G-SECC/src/main/java/com/v2gclarity/risev2g/secc/states/WaitForPowerDeliveryReq.java

@@ -151,7 +151,7 @@ public class WaitForPowerDeliveryReq extends ServerState {
 				dcEVSEStatusCode.equals(DCEVSEStatusCodeType.EVSE_SHUTDOWN) ||
 				dcEVSEStatusCode.equals(DCEVSEStatusCodeType.EVSE_EMERGENCY_SHUTDOWN) || 
 				dcEVSEStatusCode.equals(DCEVSEStatusCodeType.EVSE_MALFUNCTION)) {
-				getLogger().error("EVSE status code is '" + dcEVSEStatusCode.toString() + "'");
+				getLogger().warn("EVSE status code is '" + dcEVSEStatusCode.toString() + "'");
 				
 				if (!powerDeliveryReq.getChargeProgress().equals(ChargeProgressType.STOP)) {
 					powerDeliveryRes.setResponseCode(ResponseCodeType.FAILED_POWER_DELIVERY_NOT_APPLIED);