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. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
Well, the instruction says to change example.tld/$1 to realhost.tld. Notice the lack of /$1 in the latter. Removing the $1 will result in the problem @SMB us having now. The instructions therefore were unclear or just simply erroneous.
@SMB You should look again at the instructions for the redirect and read the last part as followed: "Replace the "exampledomain.com" in the part which says https://exampledomain.com/$1 with your domain name, leaving the rest intact, especially the "/$1” part."
Perhaps you can try to issue the certificate again from the control panel. Failing that, I would reach out to your web host to be sure that it is going to try renewal, and to check that it succeeds when it does.
If you’re interested, I recently launched https://padlockspy.com for monitoring of SSLs, including expiry reminders, feel free to check it out. Let me know what you think