Fix Mastodon startup issues

app/gabsocial/actions/me.js

@@ -64,7 +64,6 @@ export function fetchMeFail(error) {
   return {
     type: ME_FETCH_FAIL,
     error,
-    skipAlert: true,
   };
 };
 

app/gabsocial/reducers/instance.js

@@ -15,7 +15,7 @@ const initialState = ImmutableMap({
 export default function instance(state = initialState, action) {
   switch(action.type) {
   case INSTANCE_IMPORT:
-    return ImmutableMap(fromJS(action.instance));
+    return initialState.merge(fromJS(action.instance));
   default:
     return state;
   }

app/gabsocial/reducers/meta.js

@@ -12,8 +12,11 @@ export default function meta(state = initialState, action) {
     return state.merge(action.state.get('meta'));
   case ME_FETCH_SUCCESS:
     const me = fromJS(action.me);
-    const pleroPrefs = me.get('pleroma').delete('settings_store');
-    return state.mergeIn(['pleroma'], pleroPrefs);
+    if (me.has('pleroma')) {
+      const pleroPrefs = me.get('pleroma').delete('settings_store');
+      return state.mergeIn(['pleroma'], pleroPrefs);
+    }
+    return state;
   default:
     return state;
   }