I am also experiencing a fatal error, anytime I try to deactivate/delete a plugin (not this one) I receive this message;
Warning: http_build_query() expects parameter 1 to be array, null given in /home/customer/www/karissaa3.sg-host.com/public_html/wp-content/plugins/contact-form-7-mailchimp-extension/lib/events.php on line 52
Fatal error: Uncaught ArgumentCountError: Too few arguments to function callApiGet(), 1 passed in /home/customer/www/karissaa3.sg-host.com/public_html/wp-content/plugins/contact-form-7-mailchimp-extension/lib/events.php on line 53 and exactly 2 expected in /home/customer/www/karissaa3.sg-host.com/public_html/wp-content/plugins/contact-form-7-mailchimp-extension/lib/ApiService.php:18 Stack trace: #0 /home/customer/www/karissaa3.sg-host.com/public_html/wp-content/plugins/contact-form-7-mailchimp-extension/lib/events.php(53): callApiGet('https://ssl.goo...') #1 /home/customer/www/karissaa3.sg-host.com/public_html/wp-content/plugins/contact-form-7-mailchimp-extension/lib/events.php(87): vc_gaSendData(NULL) #2 /home/customer/www/karissaa3.sg-host.com/public_html/wp-content/plugins/contact-form-7-mailchimp-extension/lib/deactivate.php(30): vc_ga_send_event('Mailchimp Exten...', 'DEACTIVATED', 'Full Deactivate...') #3 /home/customer/www/karissaa3.sg-host.com/public_html/wp-includes/class-wp-hook.php(307): mce_detect_plugin_deact in /home/customer/www/karissaa3.sg-host.com/public_html/wp-content/plugins/contact-form-7-mailchimp-extension/lib/ApiService.php on line 18
