Problem in connection while running Application (using apachekafka)

Gatting this error is please suggest what is my mistake.

The thread 0x20b has exited with code 0 (0x0).
%3|1638355319.373|FAIL|rdkafka#producer-1| [thrd:0.0.0.0:9092/bootstrap]: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)
%3|1638355319.373|ERROR|rdkafka#producer-1| [thrd:app]: rdkafka#producer-1: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)
%3|1638355319.416|FAIL|rdkafka#consumer-2| [thrd:0.0.0.0:9092/bootstrap]: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)
%3|1638355319.417|ERROR|rdkafka#consumer-2| [thrd:app]: rdkafka#consumer-2: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)
%3|1638355349.374|FAIL|rdkafka#producer-1| [thrd:0.0.0.0:9092/bootstrap]: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)
%3|1638355349.374|ERROR|rdkafka#producer-1| [thrd:app]: rdkafka#producer-1: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)
%3|1638355349.417|FAIL|rdkafka#consumer-2| [thrd:0.0.0.0:9092/bootstrap]: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)
%3|1638355349.417|ERROR|rdkafka#consumer-2| [thrd:app]: rdkafka#consumer-2: 0.0.0.0:9092/bootstrap: Connect to ipv4#0.0.0.0:9092 failed: Connection refused (after 0ms in state CONNECT, 30 identical error(s) suppressed)