Codeigniter 3 problem on vps

Hi,

I followed the installation guide on https://inguide.in/install-cyberpanel-on-ubuntu-and-create-wordpress-website/ and it was great. Thank you so much for the detailed guide. However, I am facing an issue when trying to install my CodeIgniter script. It is working fine on another hosting, but not on the VPS that I installed CyberPanel. Could you please help me with this issue and suggest what could be the reason behind it?

Error is;

on the website page : Domain.com

Your /home/domain.com/public_html/application/config/recaptcha.php file does not appear to contain a valid configuration array.