The search has stopped working on my DNN 9.2.2 it was working something has triggered this to stop and I cannot figure this out. The scheduler is not able to run and this is the error I see on logs:

THREAD ID:25

TYPE:DotNetNuke.Services.Search.SearchEngineScheduler, DOTNETNUKE

EXCEPTION:Unexpected character encountered while parsing value: P. Path '', line 0, position 0.

RESCHEDULED FOR:3/27/2019 7:41:32 AM

SOURCE:STARTED_FROM_SCHEDULE_CHANGE

ACTIVE THREADS:0

FREE THREADS:1

READER TIMEOUTS:0

WRITER TIMEOUTS:0

IN PROGRESS:0

IN QUEUE:9

Server Name: EC2AMAZ-MCK83O7

Thank you Michael. I tried those steps still same issue

I guess it's time to abandon DNN Platform, the search does not work and log full of error. The community is also dying looks like no help available anymore. I will give it a couple more days to see if the community can help us out.

This is another error although I am not in a web farm

AbsoluteURL:/Default.aspx

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:6e0fddca-a7db-4b7d-91cc-9d7695ad014f

AssemblyVersion:9.3.1

PortalId:0

UserId:-1

TabId:21

RawUrl:/

Referrer:https://www.fowara.com/

UserAgent:Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

ExceptionHash:g7s7z5aACq6sjPUu+Q0scy8NVJQ=

Message:Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. See http://go.microsoft.com/fwlink/?LinkID=314055 for more information.

StackTrace:

InnerMessage:Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. See http://go.microsoft.com/fwlink/?LinkID=314055 for more information.

InnerStackTrace:

at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidati ) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose) at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose) at System.Web.UI.HiddenFieldPageStatePersister.Load() at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() at System.Web.UI.Page.LoadAllState() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Source:

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:

Server Name: EC2AMAZ-MCK83O7