Parse Syntax error

Purchased Pro last night. Had an issue at WP regarding Uploads after a site move. Corrected that and Uploaded the .zip file tonight.

Upload went fine, but upon activation received this error message.

Parse error: syntax error, unexpected ‘:’ in D:\Hosting\2772443\html\wp-content\plugins\coming-soon-page-pro\includes\front_end.php on line 545

Please tell me this is a simple fix. I really liked the free version, it worked great, But I wanted the features of the Pro and was willing to pay for it.

Thanks in advance

https://ww.wp.xz.cn/plugins/coming-soon-page/