@OlammieAO I understand, it's just that the screenshot you showed is showing a date issue, not an invalid name:
I think I see what the problem could be though, your API is being loaded using just an IP address as https://52.87.25.92:8184. A Let's Encrypt certificate cannot be used for just an IP and you need to use a proper dns name as browser won't trust a certificate for a domain if it's being used to access an IP address instead. I would suggest you change all your app API urls to use https://aiimaglobal.com:8184/ instead of https://52.87.25.92:8184/