It looks you don't have qpid-jms-client in your JMeter Classpath so please download it (and all its eventual transitive dependencies)

Once done restart JMeter, its absolutely required to pick up any changes in the Classpath.

Also be aware that according to JMeter Best Practices you should always use the latest version of JMeter so consider upgrading to JMeter 5.6 or whatever is the latest stable version available at JMeter Downloads page