Jenkins Exception in doNotifyCommit

We have started seeing the following exceptions in the log, and a failure for the jobs to be triggered. Anyone can offer some advice on whats gone wrong?

Aug 14, 2024 5:23:43 PM WARNING hudson.scm.SubversionRepositoryStatus doNotifyCommit

Listener hudson.scm.SubversionRepositoryStatus$JobTriggerListenerImpl threw an uncaught exception
java.lang.NullPointerException: Cannot read the array length because "<local2>" is null
	at PluginClassLoader for subversion//hudson.scm.SubversionSCM.getKey(SubversionSCM.java:470)
	at PluginClassLoader for workflow-job//org.jenkinsci.plugins.workflow.job.WorkflowJob.getSCMs(WorkflowJob.java:550)
	at PluginClassLoader for subversion//hudson.scm.SubversionRepositoryStatus$JobTriggerListenerImpl.onNotify(SubversionRepositoryStatus.java:248)
	at PluginClassLoader for subversion//hudson.scm.SubversionRepositoryStatus.doNotifyCommit(SubversionRepositoryStatus.java:134)
	at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:732)