Hi @luckychingi I am having the same issue, checked PHP it’s 7.3 and curl, xmlreader, xmlrpc, and xmlwriter are installed, here is the error from the server:
GET /wp-admin/admin-ajax.php?action=wpaac_list_cdn&wpaac_ak=AKIXXXXXXXXXXXXT&wpaac_sk=Mw8XXXXXXXXXXXXXXXXXXXhyzmJDo&wpaac_ori=XXXX.XXXXX.com HTTP/1.0
AH01071: Got error ‘PHP message: PHP Fatal error: Uncaught Error: Class ‘Aws\\CloudFront\\CloudFrontClient’ not found in /var/www/vhosts/dev.XXXXXXX.com/httpdocs/wp-content/plugins/aws-cdn-by-wpadmin/aws-cdn.php:768\nStack trace:\n#0 /var/www/vhosts/dev.XXXXXXX.com/httpdocs/wp-content/plugins/aws-cdn-by-wpadmin/aws-cdn.php(696): wpaawscdn->wpaac_authClient(‘AKIAYAP7ELVVAY7…’, ‘Mw8tYmSNAz//VTB…’)\n#1 /var/www/vhosts/dev.XXXXXXX.com/httpdocs/wp-includes/class-wp-hook.php(288): wpaawscdn->wpaac_list_cdn(”)\n#2 /var/www/vhosts/dev.XXXXXXX.com/httpdocs/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(”, Array)\n#3 /var/www/vhosts/dev.XXXXXXX.com/httpdocs/wp-includes/plugin.php(478): WP_Hook->do_action(Array)\n#4 /var/www/vhosts/dev.XXXXXXX.com/httpdocs/wp-admin/admin-ajax.php(175): do_action(‘wp_ajax_wpaac_l…’)\n#5 {main}\n thrown in /var/www/vhosts/dev.XXXXXXX.com/httpdocs/wp-content/plugins/aws-cdn-by-wpadmin/aws-cdn.php on line 768\n’, referer: https://dev.XXXXXXX.com/wp-admin/admin.php?page=wpa-aws-cloudfront Apache error
2020-02-20 16:58:35 Access 172.68.94.169 200 GET /w
We’re running latest WP version and latest plugin version. Please let me know if you need more information of if the PHP class error is clear enough to fix, thank you.