Hello and thanks in advance for any assistance, I have inherited a DNN 7.3.4 site and the index has not updated in 6 months. I tried to run the schedule and received the following scheduler error

AssemblyVersion:7.3.4

PortalID:-1

PortalName:

UserID:-1

UserName:

ActiveTabID:-1

ActiveTabName:

RawURL:

AbsoluteURL:

AbsoluteURLReferrer:

UserAgent:

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:d4b50155-a7eb-4914-aa82-1501f4fb2bf3

InnerException:Sequence contains more than one matching element

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:System.Linq.Enumerable.Single

StackTrace:

Message:

System.InvalidOperationException: Sequence contains more than one matching element at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate) at DotNetNuke.Services.Scheduling.Scheduler.CoreScheduler.LoadQueueFromTimer() at DotNetNuke.Services.Scheduling.Scheduler.CoreScheduler.Start()

Source:

Server Name: ANG-A9-IN01

 

 

I

 

OK, will do, thankyou for the advice.
For the real newbies (like myself) who find this post, the table can be accessed from the Menu Hosts via SQL
SELECT * FROM information_schema.tables
shows all the tables
SELECT * from WebServers

And sure enough there are three servers on my single instance. One of them has a last activity date of today and is enabled. Now to delete the other records.

All good scheduled index now runs.