I get many error messages in Log Viewer “DISTRIBUTED CACHE IS NOT UPDATED” in live environment. All messages contain same error text (see after). How can i resolve it?
Message
“DISTRIBUTED CACHE IS NOT UPDATED. Failed to execute instructions (1598: ‘“[{\“RefreshType\”:4,\“RefresherId\”:\“900a4fbe-df3c-41e6-bb77-be896cd158ea\”,\“JsonIdCount\”:1,\“JsonPayload\”:\”[{\u0022id\u0022:1191,\u0022key\u0022:\u0022387a7e4e-3331-48d3-8510-dcec7d801aa8\u0022,\u0022changeTypes\u0022:\u0022RefreshBranch\u0022,\u0022blueprint\u0022:false,\u0022publishedCultures\u0022:null,\u0022unpublishedCultures\u0022:null}]\“}]”’). Instruction is being skipped/ignored“
Details:
“System.NullReferenceException: Object reference not set to an instance of an object.
at Umbraco.Cms.Core.Services.DocumentUrlService.CreateOrUpdateUrlSegmentsAsync(IEnumerable`1 documentsEnumerable)
at Umbraco.Cms.Core.Services.DocumentUrlService.CreateOrUpdateUrlSegmentsWithDescendantsAsync(Guid key)
at Umbraco.Cms.Core.Cache.ContentCacheRefresher.HandleRouting(JsonPayload payload)
at Umbraco.Cms.Core.Cache.ContentCacheRefresher.Refresh(JsonPayload payloads)
at Umbraco.Cms.Infrastructure.Services.CacheInstructionService.NotifyRefreshers(CacheRefresherCollection cacheRefreshers, IEnumerable`1 instructions, HashSet`1 processed, CancellationToken cancellationToken)
at Umbraco.Cms.Infrastructure.Services.CacheInstructionService.ProcessDatabaseInstructions(CacheRefresherCollection cacheRefreshers, IReadOnlyCollection`1 instructionBatch, CacheInstruction instruction, HashSet`1 processed, CancellationToken cancellationToken, Int32& lastId)“
