Missing features while upgrading to sharepoint2013

While upgrading i faced two issues: 

1. Found a missing feature Id = [dc98d4f8-2307-4fe4-9f9c-5b9d97bce640], Name = [Lab04 Feature1], Description = [], Install Location = [Lab04_Feature1

2. WebPart class [6fcd2d02-416d-6df5-d11b-992a0dc48370] (class [JSharepoint.JSFile.JSFile] from assembly [JSharepoint, Version=1.0.0.0, Culture=neutral, PublicKeyToken=62e6c3f22721431c]) is referenced [2] times in the database [WSS_Content_02], but is not installed on the current farm. Please install any feature/solution which contains this web part.

 i run the following query against database but query returns null

SELECT * FROM WSS_Content_2007.dbo.Features WHERE FeatureId = ’75a0fea7-cd50-401e-af0e-782f3662a299′

SELECT * FROM WSS_Content_2007.dbo.WebParts WHERE tp_WebPartTypeId like ’68ec641-8c6a-1cc6-6465-185094919a93′

is there any other way the fix these issues