Laurence Aumeunier added a comment - 08/Feb/21 16:25 It seems due to a residual editionFO service in wiki pages. This service was inserted in a non-existing "left" zone by EditionFO module and it is present on old projets (from 1.9.x). "left" zone should be removed and no more be created Here a script to clean wiki pages try { logger; } catch (e) { logger = Ametys.getLogger( "org.ametys.core.migration.MigrationExtensionPoint.workspaces" ); } let count = 0; function _removeOldZones(page) { var zonesNode = page.getNode().getNode( 'ametys-internal:zones' ); if (zonesNode.hasNode( 'left' )) { zonesNode.getNode( 'left' ).remove(); count++; } } // 10 - Remove obsolete zone Repository.query( " //element(*, ametys:page)[@ametys-internal:template= 'project-wiki' ]" ).forEach(function(page) { _removeOldZones(page) }); session.save(); logger.info(`${count} wiki pages(s) have been migrated in default workspace`); count = 0; Repository.query( " //element(*, ametys:page)[@ametys-internal:template= 'project-wiki' ]" , true , Repository.liveSession).forEach(function(page) { _removeOldZones(page) }); Repository.liveSession.save(); logger.info(`${count} wiki pages(s) have been migrated in live workspace`);