PenciDesign replied
Hi,
You should update it to the latest version.
Because you're using an outdated version, so please remove the code at the end of functions.php file like on this image: http://prntscr.com/uon4qx
After that, do following this guide to get auto-updates the theme with one-click: https://pencidesign.ticksy.com/article/15633/
Best Regards,
PenciDesign