A later version of SkypeTM 3.8 is already installed

Hi Experts,
I installed Skype earlier with my PC. But due to appearing some error messages during signing in I decided to install a fresh copy of Skype. While installing I received an error message “A later version of SkypeTM3.8 is already installed”.
I do not know what to do now.

Error A later version of SkypeTM 3.8 is already installed.
OK
Please help me.
