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.
My domain is: simboti.co.za
I hosted my domain on EC2, installed an ssl certificate, migrated to my instance to Lightsail
and now i have a problem with my ssl certificate
Sure, that’s definitely possible. I’m not sure how you migrated your instance to lightsail, but the easy route is to reissue the certificate on the lightsail server. If you did an rsync of all important files from the EC2 server to the lightsail server you could check if the old cert and key exists in /etc/letsencrypt.
I followed the steps on the link you gave me “Generate And Install A Let’s Encrypt SSL Certificate For A Bitnami Application” now my website can’t open https://simboti.co.za/