Fix #4837 for those with older config

backend/lib/config.js

@@ -25,6 +25,12 @@ const configure = () => {
 
 		if (configData?.database) {
 			logger.info(`Using configuration from file: ${filename}`);
+
+			// Migrate those who have "mysql" engine to "mysql2"
+			if (configData.database.engine === "mysql") {
+				configData.database.engine = mysqlEngine;
+			}
+
 			instance = configData;
 			instance.keys = getKeys();
 			return;

frontend/src/components/Table/Formatter/CertificateFormatter.tsx

@@ -5,5 +5,14 @@ interface Props {
 	certificate?: Certificate;
 }
 export function CertificateFormatter({ certificate }: Props) {
-	return <T id={certificate ? "lets-encrypt" : "http-only"} />;
+	let translation = "http-only";
+	if (certificate) {
+		translation = certificate.provider;
+		if (translation === "letsencrypt") {
+			translation = "lets-encrypt";
+		} else if (translation === "other") {
+			translation = "certificates.custom";
+		}
+	}
+	return <T id={translation} />;
 }