When installing Liquid Viscosity if you get an error about your license file not being valid you will need to regenerate it. It is very easy to regenerate your license. Follow these steps.

1. Login to www.liquidvpn.com/billing/clientarea.php 
2. Click the VPN Management button




3. Click Management Actions and Select Disable Viscosity






4. Press F5 to Refresh your Browser
5. Click Management Actions and Select Enable Viscosity this will remake the zip file and bundle in the proper license.lic file. It will email the links to you or you can download the files from the bottom of https://www.liquidvpn.com/billing/clientarea.php