Error 549 occurs when the system time, date, or time zone are incorrect, or when Smaart is unable to verify that they are correct. 

• If you are not running the Smaart Demo, please ensure the software is fully up to date. 
• Follow the steps below to ensure your computer date and time is correct.  
• Reboot the computer after confirming the date and time is correct. In some cases, the device may need to be restarted several times before the error will disappear.
  

Windows

In Windows, this can be done by right-clicking the time and date from the taskbar and selecting “Adjust date/time” (this will bring you to Settings > Date & Time). Make sure that “Set time automatically” is turned on.

Note: if “Set time zone automatically” is available, make sure it is on as well. If it’s greyed out, you can safely ignore it.

 
macOS*

For macOS Monterey and older, the time and date can be changed by opening System Preferences > Date & Time.

Click the lock and enter your administrator password to allow changes, then make sure “Set date and time automatically” is checked. If multiple options appear in the dropdown to the right, please select “Apple (time.apple.com).

These settings have been moved in macOS Ventura and newer. Instead, open System Settings and navigate to General > Date & Time. Make sure "Set time and date automatically" is enabled, and set Source to Apple (time.apple.com).

*We have also noticed some cases where corruption to the macOS operating system is preventing Smaart from opening properly. To remedy this, boot the Mac device into Recovery Mode and run Disk Utility to verify all hard disks and partitions. Then, shut down the device and boot into Safe Mode -- this will load only critical services and ensure no other program is interfering with Smaart.