Seeing the aacenc.dll error message is related to a problem in a process of a Lala Media program on your PC.  When a Dynamic Link Library (DLL) file appears in an error message, it is likely that you have some registry problems on your hard drive.  The Windows registry is a section of your computer that houses files shared by multiple programs; these files can become corrupted, deleted, or misplaced during the course of normal computer usage, especially at the time of program installation and deletion.

To prevent future occurrences of the aacenc.dll error message, you need to have your computer scanned to isolate all of your registry errors.  Then you will want to fix these errors using a competent registry cleaning software like expert-recommended ZookaWare PC Cleaner.  This product of the makers of SpyZooka is top in its field, is simple to use, and guarantees 100% error removal.