Unable to find JVB in docker jitsi ( shrad)

Hello,

Do we know what causes this error?

Do you have any clue about the error below?

SEVERE: Failed to parse STUN server address: meet-jit-si-turnrelay.jitsi.net
Exception in thread “Thread-13” java.lang.IllegalArgumentException
at java.util.concurrent.ThreadPoolExecutor.(ThreadPoolExecutor.java:1314)
at java.util.concurrent.ThreadPoolExecutor.(ThreadPoolExecutor.java:1202)
at java.util.concurrent.Executors.newFixedThreadPool(Executors.java:89)
at org.ice4j.ice.harvest.MappingCandidateHarvesters.createStunHarvesters(MappingCandidateHarvesters.java:328)
at org.ice4j.ice.harvest.MappingCandidateHarvesters.initialize(MappingCandidateHarvesters.java:172)
at java.lang.Thread.run(Thread.java:748

Regards
Swathi