Hey @Angust,
Really sorry about this – the issue right now is that http://tri.be is down temporarily, which we are working to fix. License requests ping that domain so it is failing 🙁
If you are in urgent need of this license validation to work, you could add the following line of code to your site’s wp-config.php file, which will make the license validation requests circumvent the http://tri.be domain name:
define( 'PUE_UPDATE_URL', 'https://theeventscalendar.com' );
If editing the wp-config.php file is not something you’re interested in for this issue, then no worries; sit tight! We’re hoping to have the http://tri.be site back up in a matter of a few hours at most.
Thanks for your patience with this. Please let me know if the information here is helpful and/or if there’s anything else I can help with.
Cheers,
George
PS
To be clear, the license makes no impact whatsoever on the actual functionality of the plugin. That doesn’t mean that we are not working hard to fix the license validation server – I just wanted to point this out in case you were worried that your plugin would not work without the license key entered and validated 🙂