Internet security software interfering with the proper functioning of the Statistics program.
Your Statistic program is exhibiting a behavior that may be caused by the intervention of an internet security program (i.e. anti-virus, anti-malware).
Resolving the problem
Configure your internet security program to exclude from interdiction the following files:
Since the method for adding exclusions is different for each internet security software provider, please contact the software provider for details regarding how to 'white-list' files and file types in the vendor's internet security program.