Hallo MahlatseK,
you should be worried about these errors since you cannot open and analyze your result. I assume you tried processing at 10 m spatial resolution only. If, then you should try to process again for all spatial resolutions. You may have a look to the problem report Sen2Cor-02.05.05-win64 - AttributeError: 'L2A_Tables' Object has no attribute '_L2A_Tile_PVI_File' where this is discussed in more detail. I hope this will help you and solve your problem as a workaround until the bug is fixed.