Plugin killed admin.ajax?

Hi,

I logged into my admin panel today on my website and it basically went offline due to high CPU and memory.

I disabled every plugin and it looks like this plugin consumed admin.ajax?

I also had a technical error triggered:
When seeking help with this issue, you may be asked for some of the following information:
WordPress version 5.3
Current theme: Flatsome Child (version 3.0)
Current plugin: (version )
PHP version 7.3.11

Error Details
=============
An error of type E_ERROR was caused in line 227 of the file /home/username/public_html/wp-content/plugins/google-analytics-dashboard-for-wp/gadwp.php. Error message: Uncaught Error: Class ‘GADWP_Backend_Setup’ not found in /home/username/public_html/wp-content/plugins/google-analytics-dashboard-for-wp/gadwp.php:227
Stack trace:
#0 /home/username/public_html/wp-includes/class-wp-hook.php(288): GADWP_Manager->load(”)
#1 /home/username/public_html/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array)
#2 /home/username/public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#3 /home/username/public_html/wp-settings.php(523): do_action(‘init’)
#4 /home/username/public_html/wp-config.php(94): require_once(‘/home/username/…’)
#5 /home/username/public_html/wp-load.php(37): require_once(‘/home/username/…’)
#6 /home/username/public_html/wp-admin/admin.php(34): require_once(‘/home/username/…’)
#7 /home/username/public_html/wp-admin/options-general.php(10): require_once(‘/home/username/…’)
#8 {main}
thrown

I have re-enabled all of the other plugins except for this one and so far so good.

CPU & Mem usage: https://www.screencast.com/t/Adba5EvowEc