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I am using Sitecore 9.0.1 and SXA version 1.7 .I have created many components and worked on but suddenly the experience editor is giving the popup saying an error occurred. I have not changed any configurations nothing.

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Log shows the below error:

162192 16:45:48 ERROR Application error.
Exception: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: Sitecore.ContentSearch
   at Sitecore.ContentSearch.SitecoreItemCrawler.IsExcludedFromIndex(SitecoreIndexableItem indexable, Boolean checkLocation)
   at Sitecore.ContentSearch.SitecoreItemCrawler.GetContextIndexRanking(IIndexable indexable)
   at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
   at System.Linq.Enumerable.Min(IEnumerable`1 source)
   at Sitecore.ContentSearch.AbstractSearchIndex.Sitecore.ContentSearch.Pipelines.GetContextIndex.IContextIndexRankable.GetContextIndexRanking(IIndexable indexable)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.FetchIndex.c__DisplayClass6_0.b__0(ISearchIndex i)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.OrderedEnumerable`1.d__1.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.FetchIndex.GetContextIndex(IIndexable indexable, GetContextIndexArgs args)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.FetchIndex.Process(GetContextIndexArgs args)
   at (Object , Object[] )
   at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args)
   at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain)
   at Sitecore.Abstractions.CorePipelineWrapper.Run(String pipelineName, PipelineArgs args)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.GetContextIndexPipeline.Run(ICorePipeline pipeline, GetContextIndexArgs args)
   at ItemBuckets.Services.Search.PerformSearch(HttpContext context)
   at ItemBuckets.Services.Search.d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.TaskAsyncHelper.EndTask(IAsyncResult ar)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

ManagedPoolThread #5 16:45:52 ERROR Could not update device detection database
Exception: System.ArgumentNullException
Message: Null ids are not allowed.
Parameter name: endpointUri
Source: Sitecore.Kernel
   at Sitecore.Diagnostics.Assert.ArgumentNotNullOrEmpty(String argument, String argumentName)
   at Sitecore.CES.Client.WebClient.DownloadBinaryContent(String endpointUri, String resourcePath, DownladBinaryContentParameters parameters)
   at Sitecore.CES.DeviceDetection.Providers.FiftyOneDegrees.FiftyOneDeviceDetectionClient.GetNewerVersion()
   at Sitecore.CES.DeviceDetection.Providers.FiftyOneDegrees.FiftyOneDeviceDetectionClient.DoUpdate(String serviceName, String& newDatabasePath, String& newDatabaseVersion)
   at Sitecore.CES.DeviceDetection.Providers.DeviceDetectionClient.Update()

ManagedPoolThread #5 16:45:52 INFO  Job ended: Update device detection DB (units processed: )
99976 16:45:53 WARN  Failed to execute datasource query System.NullReferenceException: Object reference not set to an instance of an object.
   at Sitecore.ContentSearch.SitecoreItemCrawler.IsExcludedFromIndex(SitecoreIndexableItem indexable, Boolean checkLocation)
   at Sitecore.ContentSearch.SitecoreItemCrawler.GetContextIndexRanking(IIndexable indexable)
   at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
   at System.Linq.Enumerable.Min(IEnumerable`1 source)
   at Sitecore.ContentSearch.AbstractSearchIndex.Sitecore.ContentSearch.Pipelines.GetContextIndex.IContextIndexRankable.GetContextIndexRanking(IIndexable indexable)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.FetchIndex.c__DisplayClass6_0.b__0(ISearchIndex i)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.OrderedEnumerable`1.d__1.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.FetchIndex.GetContextIndex(IIndexable indexable, GetContextIndexArgs args)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.FetchIndex.Process(GetContextIndexArgs args)
   at (Object , Object[] )
   at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args)
   at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain)
   at Sitecore.Abstractions.CorePipelineWrapper.Run(String pipelineName, PipelineArgs args)
   at Sitecore.ContentSearch.Pipelines.GetContextIndex.GetContextIndexPipeline.Run(ICorePipeline pipeline, GetContextIndexArgs args)
   at Sitecore.Mvc.ExperienceEditor.DatasourceValidator.DatasourceValidator.IsDatasourceValid(String dataSource, Database database)
99976 16:45:53 WARN  '{AA7F2CC7-3481-4DC8-9F53-4A3A47C1786E}' is not valid datasource for master or user does not have permissions to access.

Can anyone please help me with this.

Thanks

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1

Make sure you haven't made any change to the index configs, mostly to the include/exclude sections. Also check if you updated the IndexAllFields setting.

If nothing got changed from the search configs:

  • Rebuild your indexes.
  • Make sure the indexes defined in the sitegrouping for the site are healthy.

This might happen when Sitecore is trying to create the SearchContext from an item that doesn't exist in the index.

I hope it helps you.

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0

The above issue was occured due to my solr instance was not running and i solved it by restarting my solr with its port number.

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-1

As per your logs - ERROR Could not update device detection database, it seems like a device detection issue, and Sitecore provided a patch for version 9.0.1, you can try to install that patch and try - https://kb.sitecore.net/articles/828414

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