cant create new team workspaces

Hello,

today occured a strange error. After creating some team workspaces vibe shows this error:
Allgemeiner Fehler

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class org.springframework.dao.DataIntegrityViolationExce ption
could not insert: [org.kablink.teaming.domain.Workspace]; SQL [insert into SS_Forums (lockVersion, zoneId, library, deleted, uniqueTitles, logVersion, mirrored, binderCount, resourceDriverName, resourcePath, parentBinder, owner, name, pathName, notify_teamOn, notify_style, notify_email, notify_fromAddress, notify_subject, posting, properties, functionMembershipInherited, definitionsInherited, definitionType, teamMembershipInherited, ratings_average, ratings_count, description_text, description_format, branding, brandingExt, title, normalTitle, iconName, internalId, nextBinderNumber, binder_level, binder_sortKey, versionsEnabled, versionsToKeep, versionAgingDays, versionAgingEnabled, maxFileSize, fileEncryptionEnabled, entryDef, creation_date, creation_principal, modification_date, modification_principal, postingEnabled, searchTitle, preDeleted, preDeletedWhen, preDeletedBy, type) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'workspace')]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationExcepti on: could not insert: [org.kablink.teaming.domain.Workspace]

What does this mean?
No one can create new Teamworkspaces.
Does anyone has a idea?

Greetings