Error Copy Space for Confluence in version 4.1.0

[Kseniya]

Plugin in version 4.1.0 throw an error when trying to copy space.

We are using Confluence Server 7.6.2 version app, error:

 Cause

com.atlassian.confluence.api.service.exceptions.ServiceException: Failed to add entry to queue
    at com.atlassian.confluence.impl.journal.DefaultJournalService.enqueue(DefaultJournalService.java:33)

caused by: org.springframework.dao.DataAccessResourceFailureException: Failed to read id for journal 'main_index': null; nested exception is java.lang.NumberFormatException: null
    at com.atlassian.confluence.impl.journal.FilesystemJournalStateStore.getMostRecentId(FilesystemJournalStateStore.java:47)

caused by: java.lang.NumberFormatException: null
    at java.base/java.lang.Long.parseLong(Unknown Source)

Stack Trace:[hide]

com.atlassian.confluence.api.service.exceptions.ServiceException: Failed to add entry to queue
	at com.atlassian.confluence.impl.journal.DefaultJournalService.enqueue(DefaultJournalService.java:33)
	at com.atlassian.confluence.search.queue.AbstractJournalIndexTaskQueue.lambda$enqueue$0(AbstractJournalIndexTaskQueue.java:89)
	at java.base/java.util.Optional.ifPresent(Unknown Source)
	at com.atlassian.confluence.search.queue.AbstractJournalIndexTaskQueue.enqueue(AbstractJournalIndexTaskQueue.java:88)
	at com.atlassian.confluence.search.QueuingChangeIndexer$InternalChangeIndexer.reIndex(QueuingChangeIndexer.java:155)
	at com.atlassian.confluence.search.QueuingChangeIndexer.reIndex(QueuingChangeIndexer.java:53)