Hi,

we have many downtimes since this week and I am trying to solve this problem. In my logs I found following errors. I replaced the URL here because of privacy reasons, so there is no reason to mention it ;) (mywebsiteurl)

RAM usage is nearly by 90%.

ERROR UmbracoExamine.DataServices.UmbracoLogService -   Provider=ExternalIndexer, NodeId=-1
  System.Exception: Error indexing queue items,System.ArgumentException:     Illegal characters in path.



ERROR Umbraco.Web.Scheduling.KeepAlive - Failed (at "mywebsiteurl/umbraco").
System.Threading.Tasks.TaskCanceledException: A task was canceled.



ERROR Umbraco.Web.Scheduling.ScheduledTasks - An error occurred calling web task for url: mywebsiteurl/RebuildIndex/
System.Threading.Tasks.TaskCanceledException: A task was canceled.



ERROR Umbraco.Web.Scheduling.ScheduledPublishing - Failed (at "mywebsiteurl/umbraco").
System.Threading.Tasks.TaskCanceledException: A task was canceled.

What does this mean? Thank you for your advice,

Nadine