Cannot send message

[ZedZipDev]

I have created SQLCLR, all is ok.
Then try this
EXEC dbo.pr_SomeProcessingStuff @id = 101
But receive

Msg 50000, Level 16, State 1, Procedure dbo.pr_SomeProcessingStuff, Line 29 [Batch Start Line 20]
Error: Error: A .NET Framework error occurred during execution of user-defined routine or aggregate "pr_clr_PostRabbitMsg": 
System.ApplicationException: Channel pool blocked when trying to post message to Exchange: amq.direct.
System.ApplicationException: 
   at RabbitMQSqlClr.RabbitPublisher.Post(String exchange, Byte[] msg, String topic)
   at RabbitMQSqlClr.RabbitMQSqlServer.pr_clr_PostRabbitMsg(Int32 endPointId, String msgToPost)
. at line: 0 at line: 13

I have changed the amq.direct -> amq.topic but the same error.
I use SQL Server 2019 and RabbitMQ Docker
docker run -d --hostname my-rabbit --name some-rabbit -p 15672:15672 -p 5672:5672 rabbitmq:3-management

Where am I wrong? what to fix?