The log file indicates that no hands are being imported from the stars hand history folder. It is only importing hands from the pre-fetch path for the \hem data folder.
Either pokerstars stopped writing hands to the path or they are 'stuck' in that folder and causing the importer to have problems.
Check that the pokerstars option for instant hand history is still enabled and writing hands to the proper path.
Move the files in the handhistory folder to your \hmarchive folder and import them via import file or import from folder.
Try a new session with auto-import. A new handhistory file should be generated.
If you continue to have problems, please view the following FAQ and if this does not solve the problem please answer all the questions at the bottom of the FAQ to help us narrow down the issue.
http://hm2faq.holdemmanager.com/ques...+does+not+work
The more questions you answer the quicker we can narrow down the issue and provide a solution