Hello,

These errors appear when we try to export Forms report to excel and in other cases did anyone faced this error before?

[502]: Une erreur inattendue s'est produite. [LFF502-UnexpectedError]

Details:
URL: /Forms/form/avsubmission?instanceId=&routingResumeId=6c4fc736-6fee-4f83-8b5f-7c23dfbcc440&submissionId=&RemoveHead=true&clientHandlesRedirect=true&readonly=false
Error: UnexpectedError
Date: 21/02/2019 09:21:16 (Afr. centrale Ouest)
HTTP Status Code: 500
Business Process ID: 0
User: ADMIN
IP: 10.172.150.7
Browser: Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
Business Process Name: 

Stack Trace:
Caught exception: Laserfiche.Forms.CommonUtils.Exceptions.LFFormsException
Message: Une erreur inattendue s'est produite. [LFF502-UnexpectedError]

Inner exception: System.OutOfMemoryException
Message: Une exception de type 'System.OutOfMemoryException' a été levée.
   à System.Data.SqlClient.TdsParserStateObject.TryReadPlpBytes(Byte[]& buff, Int32 offst, Int32 len, Int32& totalBytesRead)
   à System.Data.SqlClient.TdsParser.TryReadSqlValue(SqlBuffer value, SqlMetaDataPriv md, Int32 length, TdsParserStateObject stateObj, SqlCommandColumnEncryptionSetting columnEncryptionOverride, String columnName)
   à System.Data.SqlClient.SqlDataReader.TryReadColumnInternal(Int32 i, Boolean readHeaderOnly)
   à System.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn)
   à System.Data.SqlClient.SqlDataReader.GetValues(Object[] values)
   à System.Data.Entity.Core.Objects.Internal.ShapelessBufferedDataRecord.Initialize(String providerManifestToken, DbProviderServices providerSerivces, DbDataReader reader)
   à System.Data.Entity.Core.Objects.Internal.BufferedDataReader.Initialize(String providerManifestToken, DbProviderServices providerServices, Type[] columnTypes, Boolean[] nullableColumns)
   à System.Data.Entity.Core.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext context, ObjectParameterCollection parameterValues)
   à System.Data.Entity.Core.Objects.ObjectQuery`1.<>c__DisplayClass7.<GetResults>b__6()
   à System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
   à System.Data.Entity.Core.Objects.ObjectQuery`1.<>c__DisplayClass7.<GetResults>b__5()
   à System.Data.Entity.Infrastructure.DbExecutionStrategy.Execute[TResult](Func`1 operation)
   à System.Data.Entity.Core.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
   à System.Data.Entity.Core.Objects.ObjectQuery`1.Execute(MergeOption mergeOption)
   à System.Data.Entity.Core.Objects.DataClasses.EntityCollection`1.Load(List`1 collection, MergeOption mergeOption)
   à System.Data.Entity.Core.Objects.DataClasses.EntityCollection`1.Load(MergeOption mergeOption)
   à System.Data.Entity.Core.Objects.DataClasses.RelatedEnd.DeferredLoad()
   à System.Data.Entity.Core.Objects.Internal.LazyLoadBehavior.LoadProperty[TItem](TItem propertyValue, String relationshipName, String targetRoleName, Boolean mustBeNull, Object wrapperObject)
   à System.Data.Entity.Core.Objects.Internal.LazyLoadBehavior.<>c__DisplayClass7`2.<GetInterceptorDelegate>b__1(TProxy proxy, TItem item)
   à System.Data.Entity.DynamicProxies.cf_bp_data_BCD01D029A344CAB57B5EE2F3ED0A5A92AC6BC5B55DD6DA5F8BE2516AD9BD45E.get_cf_bp_attachment_data()
   à Laserfiche.Forms.Routing.VariableXMLGenerator.<>c.<AddMemberData>b__44_2(cf_bp_data d)
   à System.Linq.Lookup`2.Create[TSource](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
   à System.Linq.GroupedEnumerable`3.GetEnumerator()
   à System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   à System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   à System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   à Laserfiche.Forms.Routing.VariableXMLGenerator.AddMemberData(XDocument& doc, IEnumerable`1& submissions, Int32 submissionIdInUse, Int32[] IncludedMemberIds, HashSet`1 IncludeAttrIds, Boolean includeSeparators)
   à Laserfiche.Forms.Routing.VariableXMLGenerator.GenerateXml(Int32 bpInstanceId, Nullable`1 formId, cf_user_snapshot initiator, Nullable`1 submissionId, Nullable`1 initiatedTime, Nullable`1 taskTime, Boolean includeSeparators, HashSet`1 includeAttrIds)
   à Laserfiche.Forms.Routing.VariableXMLGenerator.GetLatestDataBySubmission(Int32 mainInstanceId, Int32 formId, Nullable`1 submissionId, cf_user_snapshot initiator, Nullable`1 initiatedTime, Boolean includeSeparators)
   à E_Forms.Models.ViewModels.Form.Approval.PopulateForm()
   à ASP._Page_Views_Form__FormLayout_cshtml.Execute() dans c:\Program Files (x86)\Laserfiche\Laserfiche Forms\Forms\Views\Form\_FormLayout.cshtml:ligne 357
   à System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   à System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   à System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   à System.Web.WebPages.WebPageBase.<>c__DisplayClass3.<RenderPageCore>b__2(TextWriter writer)
   à System.Web.WebPages.HelperResult.WriteTo(TextWriter writer)
   à System.Web.WebPages.WebPageBase.Write(HelperResult result)
   à System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body)
   à System.Web.WebPages.WebPageBase.PopContext()
   à System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   à System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
   à System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
   à System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
   à System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult)
   à System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   à System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   à System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
   à System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
   à System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<>c__DisplayClass2b.<BeginInvokeAction>b__1c()
   à System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult)