diff --git a/source/addons/compatibility.ts b/source/addons/compatibility.ts
index b6a595b..af4416e 100644
--- a/source/addons/compatibility.ts
+++ b/source/addons/compatibility.ts
@@ -34,27 +34,27 @@ export default class CompatibilityModule {
     private async convert(data: any, version: string): Promise<boolean> {
         const settingsMap: { [key: string]: any } = {
             '1.*': {
-                extensions: data.extensions.replace(',', '>'),
-                forced_extensions: data.force_extensions.replace(',', '>'),
+                extensions: data.extensions?.replace(',', '>') ?? '',
+                forced_extensions: data.forced_extensions?.replace(',', '>') ?? '',
                 is_onload: Boolean(data.is_dynamic_on),
             },
             '2.0': {
-                extensions: data.extensions.replace(',', '>'),
-                grouped_extensions: data.grouped_extensions.replace(',', '>'),
+                extensions: data.extensions?.replace(',', '>') ?? '',
+                grouped_extensions: data.grouped_extensions?.replace(',', '>') ?? '',
             },
             '2.1': {
-                grouped_extensions: data.grouped_extensions.replace(',', '>'),
-                extensions: data.extensions.replace(';', '>'),
-                forced_extensions: data.forced_extensions.replace(';', '>'),
-                ignore_extensions: data.ignore_extensions.replace(';', '>'),
-                ignore_masks: data.ignore_masks.replace(';', '>'),
+                grouped_extensions: data.grouped_extensions?.replace(';', '>') ?? '',
+                extensions: data.extensions?.replace(';', '>') ?? '',
+                forced_extensions: data.forced_extensions?.replace(';', '>') ?? '',
+                ignore_extensions: data.ignore_extensions?.replace(';', '>') ?? '',
+                ignore_masks: data.ignore_masks?.replace(';', '>') ?? '',
             },
             '2.4': {
-                grouped_extensions: data.grouped_extensions.replace(',', '>'),
-                extensions: data.extensions.replace(';', '>'),
-                forced_extensions: data.forced_extensions.replace(';', '>'),
-                ignore_extensions: data.ignore_extensions.replace(';', '>'),
-                ignore_masks: data.ignore_masks.replace(';', '>'),
+                grouped_extensions: data.grouped_extensions?.replace(',', '>') ?? '',
+                extensions: data.extensions?.replace(';', '>') ?? '',
+                forced_extensions: data.forced_extensions?.replace(';', '>') ?? '',
+                ignore_extensions: data.ignore_extensions?.replace(';', '>') ?? '',
+                ignore_masks: data.ignore_masks?.replace(';', '>') ?? '',
             },
         };