Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
So the way I think it works is that it creates a password.txt file, so you need to download that file through your control panel and open it to find out the password to use. That way it can only be used by people who have the control panel access.
But I haven't actually used CertSage myself, so if you need more help than that than we might need to ask @griffin (the developer and another regular on this forum).
I feel so bad about this, but I don't know how to go about downloading the file through the control panel...I've downloaded the file from File Manager but all I see is code written to generate it. @griffin
Firstly, a shout out to @petercooperjr for recommending CertSage here!
Looks like you've put a copy of certsage.php into your public_html directory in your cPanel hosting, which is good. If you look in the parent directory of public_html, which should be the root directory of your cPanel hosting, you should see a CertSage directory containing a password.txt file. That's the password you need to use CertSage. If you want a friendlier password, feel free to replace that password with whatever string of characters that you wish. Just make sure the contents of password.txt stays one line and doesn't become multiple lines.
Thank you so much! I have successfully renewed my certificate for my site. I have also saved all this info, so hopefully smooth sailing from here on out. Thank you again!