I just activated the plugin however, no data is displaying even after downloading the file. How can this matter be fixed?

Just UG Dev to PHP 7.04 and this very useful plugin appears to have major issues with PHP 7 and or MariaDB 10.1.10,

Fatal error: Uncaught Error: Call to undefined function mysql_get_server_info() in D:\xampp\htdocs\wordpress2\wp-content\plugins\system-snapshot-report\system-snapshot-report.php:298 Stack trace: #0 D:\xampp\htdocs\wordpress2\wp-content\plugins\system-snapshot-report\system-snapshot-report.php(177): System_Snapshot_Report->snapshot_data() #1 D:\xampp\htdocs\wordpress2\wp-includes\plugin.php(525): System_Snapshot_Report->snapshot_report(”) #2 D:\xampp\htdocs\wordpress2\wp-admin\admin.php(236): do_action(‘tools_page_snap…’) #3 D:\xampp\htdocs\wordpress2\wp-admin\tools.php(10): require_once(‘D:\\xampp\\htdocs…’) #4 {main} thrown in D:\xampp\htdocs\wordpress2\wp-content\plugins\system-snapshot-report\system-snapshot-report.php on line 298

https://www.ads-software.com/plugins/system-snapshot-report/

Nice plugin, I plan to recommend it a lot.

One notice:

PHP Deprecated: mysql_get_server_info(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead

I would love to adopt this plugin if you have no plans/time to update it. Please give it some thought.

https://www.ads-software.com/plugins/system-snapshot-report/

Just a gentle reminder that all WordPress headings in admin screens have changed from H2 to H1 in version 4.3, way back in July 2015. Please change your heading structure so it’s semantically correct.

https://www.ads-software.com/plugins/system-snapshot-report/