I also encountered this error when I tried to activate the plugin with version fro 1.2
Parse error: syntax error, unexpected ‘[‘ in /home/daynghespa/domains/hnm.edu.vn/public_html/wp-content/plugins/cf7-google-sheets-connector-pro/includes/class-gs-service.php on line 21
Version PHP 5.3
Wordpress: 4.9
