fix: better handling of the updates download (#2339)

Author: dziudek

app/back-end/builddata.json

@@ -1,4 +1,4 @@
 {
   "version": "0.47.0",
-  "build": 17299
+  "build": 17302
 }

app/back-end/helpers/updates.helper.js

@@ -11,7 +11,7 @@ class UpdatesHelper {
     }
 
     retrieve () {
-        if (this.forceDownload) {
+        if (this.forceDownload || !fs.existsSync(this.filePath)) {
             this.download();
         } else {
             this.readExistingData();
@@ -46,8 +46,6 @@ class UpdatesHelper {
         if (fs.existsSync(this.filePath)) {
             let body = FileHelper.readFileSync(this.filePath, 'utf8');
             this.handleResponse(body, false);
-        } else {
-            this.sendError();
         }
     }