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.
It’s common to renew certificates about every 60 days – they expire after 90 days, and 60 is a round number that gives some breathing room to fix problems – and your certificate was previously following that schedule. Something went wrong, or at least changed, and it wasn’t renewed on February 24… but it was renewed earlier today.
If SiteGround manages the certificate and is responsible for renewing it, I guess they noticed something was wrong and resolved it. Or it magically got better on its own, permanently or temporarily. Or nothing was wrong and they just changed the schedule from renewing every 60 days to renewing every 70 days.
I guess you could ask their support what happened and if you should expect problems in the future.