What does this message mean: 'Input string was not in a correct format'?

The license file in the folder config (lc.dat) is not valid anymore.
Please follow the next steps:

  1. Close SYNCING.NET.
  2. Delete the lc.dat file in the folder C:\documents and settings\User account\\application data\SYNCING.NET\config.
  3. Restart SYNCING.NET and activate your license again.

If the message still occur please contact SYNCING.NET Technical Support