diff --git a/core/core.js b/core/core.js
index fa5da0bf..53dbe066 100644
--- a/core/core.js
+++ b/core/core.js
@@ -192,7 +192,9 @@ async function getProcessBlob(blobId, key, options) {
 			process.credentials = options.credentials || {};
 			process.task = new Task();
 			process.eventHandlers = {};
-			process.app = new app.App();
+			if (!options?.script || options?.script === 'app.js') {
+				process.app = new app.App();
+			}
 			process.lastActive = Date.now();
 			process.lastPing = null;
 			process.timeout = options.timeout;
@@ -276,7 +278,7 @@ async function getProcessBlob(blobId, key, options) {
 								throw Error(`Permission denied: ${permission}.`);
 							}
 
-						} else {
+						} else if (process.app) {
 							return process.app.makeFunction(['requestPermission'])(permission).then(function(value) {
 								if (value == 'allow') {
 									storePermission(user, options.packageOwner, options.packageName, permission, true);
@@ -293,6 +295,8 @@ async function getProcessBlob(blobId, key, options) {
 								}
 								throw Error(`Permission denied: ${permission}.`);
 							});
+						} else {
+							throw Error(`Permission denied: ${permission}.`);
 						}
 					},
 				}
@@ -353,8 +357,12 @@ async function getProcessBlob(blobId, key, options) {
 			};
 			process.task.onError = function(error) {
 				try {
-					process.app.makeFunction(['error'])(error);
-				} catch(e) {
+					if (process.app) {
+						process.app.makeFunction(['error'])(error);
+					} else {
+						print(error);
+					}
+				} catch (e) {
 					print(e);
 				}
 			};