diff --git a/package.json b/package.json
index d3d6fbc..1ab0d23 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "django-bananas",
-  "version": "4.1.1",
+  "version": "4.1.2",
   "license": "MIT",
   "author": "Jonas Lundberg",
   "repository": {
@@ -10,13 +10,7 @@
   "description": "React admin frontend for Django.",
   "main": "index.js",
   "private": true,
-  "keywords": [
-    "admin",
-    "bananas",
-    "django",
-    "django-admin",
-    "react"
-  ],
+  "keywords": ["admin", "bananas", "django", "django-admin", "react"],
   "scripts": {
     "start": "webpack-dev-server --config app/webpack.config.js",
     "watch": "jest --watchAll --verbose",
diff --git a/src/Admin.js b/src/Admin.js
index 8dde9b8..4f41702 100644
--- a/src/Admin.js
+++ b/src/Admin.js
@@ -206,7 +206,7 @@ class Admin extends React.Component {
       });
     } catch (error) {
       logger.error("Critical Error: Failed to initialize API client!", error);
-      const cause = error.response ? error.response.statusText : "Unreachable";
+      const cause = error?.response?.statusText ?? "Unreachable";
       this.admin.error(`Failed to boot: API ${cause}`);
       this.setState({ booting: false });
       return;
diff --git a/src/api.js b/src/api.js
index fc4bb7d..ed3b0f9 100644
--- a/src/api.js
+++ b/src/api.js
@@ -60,7 +60,7 @@ class APIClient extends Swagger {
               const message =
                 response.obj && response.obj.detail
                   ? response.obj.detail
-                  : `API ${response.statusText}`;
+                  : `API ${response?.statusText ?? "Unknown error"}`;
 
               this.errorHandler(message);
             };
diff --git a/src/forms/Form.js b/src/forms/Form.js
index ebd1a96..2598d88 100644
--- a/src/forms/Form.js
+++ b/src/forms/Form.js
@@ -51,7 +51,7 @@ class Form extends React.Component {
       this.context.api[route]({
         ...params,
         ...passedParams,
-        data: data || values,
+        data: data ?? values,
       });
     const promise = onSubmit
       ? Promise.resolve(onSubmit({ endpoint, values }))
@@ -65,12 +65,13 @@ class Form extends React.Component {
           return false;
         });
 
-    return promise.catch(({ response: { statusText, status, obj } }) => {
+    return promise.catch(({ response: { obj, ...response } }) => {
       const errorMessages = {
         400: "Please correct the errors on this form.",
       };
       this.context.admin.error(
-        errorMessages[status] || `${status} : ${statusText}`
+        errorMessages?.[response?.status] ??
+          `${response?.status ?? "Unknown status"} : ${response?.statusText ?? "Unknown cause"}`
       );
       return normalizeFormErrorData(obj);
     });