Error: Server was unable to process request. Value cannot be null. Parameter name: termId (4377948)

Migrating from on-prem to SharePoint online, some documents fail with the error message:

Error: Server was unable to process request. ---> Value cannot be null.
Parameter name: termId
Stack:    at Metalogix.SharePoint.Adapters.MLWS.MLWSAdapter.ExecuteMethod(String sMethodName, Object[] parameters)
   at Metalogix.SharePoint.Adapters.MLWS.MLWSAdapter.GetListItemVersions(String sListID, Int32 iItemID, String sFields, String sListSettings)
   at Metalogix.SharePoint.SPListItemVersionCollection.FetchData(Boolean bIncludeTempVersions)
   at Metalogix.SharePoint.SPListItemVersionCollection.FetchData()
   at Metalogix.SharePoint.SPListItem.get_VersionHistory()
   at Metalogix.SharePoint.Actions.Migration.PasteListItemAction.IsVersioningAllowed(SPListItem sourceItem, SPFolder targetFolder)
   at Metalogix.SharePoint.Actions.Migration.PasteListItemAction.CopyDocumentOffice365(SPListItem sourceItem, SPFolder targetFolder, SPListItem existingItem, SPListItem& newItem, Boolean& bItemNewlyCreated, String& sSourceXml, LogItem copyOperationLogItem, SPListItemCollection targetItemCollection, IUploadManager uploadManager)
   at Metalogix.SharePoint.Actions.Migration.PasteListItemAction.CopyListItemOffice365(SPListItem sourceItem, Int32 iItemIndex, Nullable`1 iParentItemID, SPFolder targetFolder, SPListItemCollection sourceItems, SPListItemCollection& targetItems, Boolean bPreservingItems, Dictionary`2& itemIdMap, IUploadManager uploadManager, List`1 filteredFolders)

Type: System.Web.Services.Protocols.SoapException

HResult:-2146233087

In the source SharePoint site, the affected files are showing an error for "Version History".

As the version history is broken on those files Content Matrix is failing to read the versions.

This is SharePoint environment issue; you could try to solve the issue with the versions within SharePoint 

or

Safely ignore the error, as Content Matrix will migrate the published/major version of the file.