Improve error handling

apps/api/src/services/exchange-rate-data.service.ts

@@ -58,8 +58,8 @@ export class ExchangeRateDataService {
       if (!this.currencies[pair]) {
         // Not found, calculate indirectly via USD
         this.currencies[pair] =
-          resultExtended[`${currency1}${Currency.USD}`][date].marketPrice *
-          resultExtended[`${Currency.USD}${currency2}`][date].marketPrice;
+          resultExtended[`${currency1}${Currency.USD}`]?.[date]?.marketPrice *
+          resultExtended[`${Currency.USD}${currency2}`]?.[date]?.marketPrice;
 
         // Calculate the opposite direction
         this.currencies[`${currency2}${currency1}`] = 1 / this.currencies[pair];

apps/client/src/app/pages/admin/admin-page.component.ts

@@ -97,16 +97,20 @@ export class AdminPageComponent implements OnInit {
   }
 
   public formatDistanceToNow(aDateString: string) {
-    const distanceString = formatDistanceToNow(
-      sub(parseISO(aDateString), { seconds: 10 }),
-      {
-        addSuffix: true
-      }
-    );
+    if (aDateString) {
+      const distanceString = formatDistanceToNow(
+        sub(parseISO(aDateString), { seconds: 10 }),
+        {
+          addSuffix: true
+        }
+      );
+
+      return distanceString === 'less than a minute ago'
+        ? 'just now'
+        : distanceString;
+    }
 
-    return distanceString === 'less than a minute ago'
-      ? 'just now'
-      : distanceString;
+    return '';
   }
 
   public ngOnDestroy() {