Problem in ListingBuilder Theme

How can I fix this error “Parse error: syntax error, unexpected T_STRING in C:\xampp\htdocs\wordpress\wp-content\themes\ListingBuilder\inc\payments\stripe\td-stripe-payment.php on line 24” after i successfully installed theme in my Wordpress Website and applied that theme. It occurs that error. Thank you very much!

Hi

Please contact the theme author. They will be able to fix your issues.

Thank you.