Error in activation “the post grid” plug-in

Hello – I am also experiencing this error, and am wondering whether any resolution has been found, please? I would open a support ticket on your site, but it seems like possibly the form is only for support for paid products from Envato or your own site. I have included the full error message below; as you can see, I am running a local test instance using XAMPP, so I don’t know whether this error is reproducible in a more realistic context. Many thanks in advance for your help.

Warning: require_once(C:\xampp\htdocs\wordpress\wp-content\plugins\the-post-grid\app./../vendor/autoload.php): Failed to open stream: Permission denied in C:\xampp\htdocs\wordpress\wp-content\plugins\the-post-grid\app\RtTpg.php on line 13

Fatal error: Uncaught Error: Failed opening required 'C:\xampp\htdocs\wordpress\wp-content\plugins\the-post-grid\app./../vendor/autoload.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\wordpress\wp-content\plugins\the-post-grid\app\RtTpg.php:13 Stack trace: #0 C:\xampp\htdocs\wordpress\wp-content\plugins\the-post-grid\the-post-grid.php(31): require_once() #1 C:\xampp\htdocs\wordpress\wp-admin\includes\plugin.php(2314): include_once('C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\wordpress\wp-admin\plugins.php(192): plugin_sandbox_scrape('the-post-grid/t...') #3 {main} thrown in C:\xampp\htdocs\wordpress\wp-content\plugins\the-post-grid\app\RtTpg.php on line 13

@apekikuk, thanks brother it works