diff --git a/frontend/src/lib/utils/i18n.ts b/frontend/src/lib/utils/i18n.ts
index 8e555956c2..0edc699e56 100644
--- a/frontend/src/lib/utils/i18n.ts
+++ b/frontend/src/lib/utils/i18n.ts
@@ -11,9 +11,11 @@ export function unsafeTranslate(key: string, params = {}, options = {}): string
 	if (Object.hasOwn(m, key)) {
 		return m[key](params, options);
 	}
-	let res = key.match('^([^:]+):([^:]+)$');
-	if (res) {
-		return (Object.hasOwn(m, res[1]) ? m[res[1]](params, options) : res[1]) + ':' + res[2];
+	if (typeof key === 'string' && key) {
+		let res = key.match('^([^:]+):([^:]+)$');
+		if (res) {
+			return (Object.hasOwn(m, res[1]) ? m[res[1]](params, options) : res[1]) + ':' + res[2];
+		}
 	}
 	if (Object.hasOwn(m, toCamelCase(key))) {
 		return m[toCamelCase(key)](params, options);