diff --git a/src/main/java/org/bdware/sc/event/clients/ContractConsumer.java b/src/main/java/org/bdware/sc/event/clients/ContractConsumer.java
index 8fef7c0..6422814 100644
--- a/src/main/java/org/bdware/sc/event/clients/ContractConsumer.java
+++ b/src/main/java/org/bdware/sc/event/clients/ContractConsumer.java
@@ -92,14 +92,16 @@ public class ContractConsumer implements IEventConsumer {
                                 if (callCount.get() == TIMEOUT_COUNT ||
                                         (result.status == ContractResult.Status.Exception &&
                                                 result.result.toString().contains("not exported"))) {
-                                    LOGGER.warn("receiving event error: request failed!");
+                                    LOGGER.error(String.format(
+                                            "receiving event error! %s.%s: %s", contract, handler, str));
                                     rc.onResult((String) null);
                                 } else {
                                     ret = false;
                                 }
                             }
                         } catch (Exception e) {
-                            LOGGER.warn("receiving event error! " + contract + "." + handler + ": " + e.getMessage());
+                            LOGGER.error(String.format(
+                                    "receiving event error! %s.%s: %s", contract, handler, e.getMessage()));
                             rc.onResult((String) null);
                         }
                         callCount.incrementAndGet();