diff --git a/README.md b/README.md
index b4dd4b2d3..40cdadd7a 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,10 @@ And then call `npm run build`.
 
 ## Changelog
 
+### __WORK IN PROGRESS__
+* (Apollon77) Do not try to set a state value if object creation was not successful (Sentry IOBROKER-JAVASCRIPT-5G)
+* (Apollon77) Make sure no incorrect states are trying to be set (Sentry IOBROKER-JAVASCRIPT-5F, IOBROKER-JAVASCRIPT-5A)
+
 ### 4.10.9 (2021-01-13)
 * (Apollon77) Make sure to end all Timeouts
 * (Apollon77) Prevent crash case (Sentry IOBROKER-JAVASCRIPT-51)
diff --git a/lib/mirror.js b/lib/mirror.js
index 079846ec9..e9e3e2f26 100644
--- a/lib/mirror.js
+++ b/lib/mirror.js
@@ -31,8 +31,8 @@ class Mirror {
             log:   text  => console.log(text),
             warn:  text  => console.warn(text),
             error: text  => console.error(text)
-        };        
-        
+        };
+
         if (!fs.existsSync(this.diskRoot)) {
             try {
                 fs.mkdirSync(this.diskRoot);
@@ -545,7 +545,11 @@ class Mirror {
                     native: {}
                 };
                 list[folderId] = obj;
-                this.adapter.setForeignObject(folderId, obj);
+                try {
+                    this.adapter.setForeignObject(folderId, obj);
+                } catch (err) {
+                    this.log.warn(`Error while checking script folders for id "${id}": ${err}`);
+                }
             }
         }
     }
diff --git a/lib/sandbox.js b/lib/sandbox.js
index a00bce2fe..df47423d9 100644
--- a/lib/sandbox.js
+++ b/lib/sandbox.js
@@ -1916,13 +1916,13 @@ function sandBox(script, name, verbose, debug, context) {
                     }, function (err) {
                         err && adapter.log.warn('Cannot set object "' + id + '": ' + err);
 
-                        if (initValue !== undefined) {
+                        if (!err && initValue !== undefined) {
                             if (isObject(initValue) && initValue.ack !== undefined) {
                                 adapter.setForeignState(id, initValue, callback);
                             } else {
                                 adapter.setForeignState(id, initValue, true, callback);
                             }
-                        } else if (!forceCreation) {
+                        } else if (!err && !forceCreation) {
                             adapter.setForeignState(id, null, true, callback);
                         } else {
                             if (typeof callback === 'function') {
diff --git a/main.js b/main.js
index 81e398b02..d8c912a97 100644
--- a/main.js
+++ b/main.js
@@ -1694,7 +1694,12 @@ function prepareScript(obj, callback) {
         let _name;
         if (obj && obj._id) {
             _name = obj._id;
-            adapter.setState('scriptEnabled.' + _name.substring('script.js.'.length), false, true);
+            const scriptIdName = _name.substring('script.js.'.length);
+            if (scriptIdName.length) {
+                adapter.setState('scriptEnabled.' + scriptIdName, false, true);
+            } else {
+                adapter.log.error('Invalid scriptname');
+            }
         }
         !obj && adapter.log.error('Invalid script');
         typeof callback === 'function' && callback(false, _name);