Hi, @tuananhlai. Thanks for creating this issue. Will try to add it in next version
Connector doesn't show trace when failed
**Describe the bug**

Kafka Connector doesn't show stack trace when they fail to run.

**Set up**

1. Create a new connector (I used Debezium)
2. Config the connector with the wrong password.

**Steps to Reproduce**
Steps to reproduce the behavior:

1. Click `Kafka Connector` in the side bar.
2. Click on a connector.

**Expected behavior**

`Trace` column show the stack trace of the failure.

**Screenshots**

![image](https://user-images.githubusercontent.com/42168740/129319307-5cf3acad-f895-41e7-ad15-196887d55c79.png)

**Additional context**
(Add any other context about the problem here)
kafka-ui-contract/src/main/resources/swagger/kafka-connect-api.yaml
kafka-ui-contract/src/main/resources/swagger/kafka-connect-api.yaml
diff --git a/kafka-ui-contract/src/main/resources/swagger/kafka-connect-api.yaml b/kafka-ui-contract/src/main/resources/swagger/kafka-connect-api.yaml
index a5b8f18a243..14c996ee545 100644
--- a/kafka-ui-contract/src/main/resources/swagger/kafka-connect-api.yaml
+++ b/kafka-ui-contract/src/main/resources/swagger/kafka-connect-api.yaml
@@ -409,6 +409,8 @@ components:
             - UNASSIGNED
         worker_id:
           type: string
+        trace:
+          type: string
 
     ConnectorStatus:
       type: object
@@ -427,6 +429,8 @@ components:
                 - UNASSIGNED
             worker_id:
               type: string
+            trace:
+              type: string
         tasks:
           type: array
           items:
