There are many reasons why the license key can not work. The most common errors are due to:

  1. Added an extra blank space at the end of the license key when copy pasting. Please double check it.
  2. Trying to activate an already activated license in a second computer. Please note that one license is only for one computer. So, if you already validated the code in any computer, you will not be able to activate it again. If you format the pc or delete the license, LongoMatch will stop working. In that case, please contact LongoMatch support to guide you migrate your license.