fix errors at load

libs/remix-ui/app/src/lib/remix-app/remix-app.tsx

@@ -19,7 +19,7 @@ const RemixApp = (props: IRemixAppUi) => {
   const [hideSidePanel, setHideSidePanel] = useState<boolean>(false)
   const [maximiseTrigger, setMaximiseTrigger] = useState<number>(0)
   const [resetTrigger, setResetTrigger] = useState<number>(0)
-  const [locale, setLocale] = useState<{ code:string; messages:any }>({ code:'', messages:{} });
+  const [locale, setLocale] = useState<{ code:string; messages:any }>({ code:'en', messages:{} });
   const sidePanelRef = useRef(null)
 
   useEffect(() => {

libs/remix-ui/panel/src/lib/plugins/panel-header.tsx

@@ -35,7 +35,7 @@ const RemixUIPanelHeader = (props: RemixPanelProps) => {
     <header className='d-flex flex-column'>
       <div className="swapitHeader px-3 pt-2 pb-0 d-flex flex-row">
         <h6 className="pt-0 mb-1" data-id='sidePanelSwapitTitle'>
-          <FormattedMessage id={plugin?.profile.name + '.displayName'} defaultMessage={plugin?.profile.displayName || plugin?.profile.name} />
+          <FormattedMessage id={`${plugin?.profile.name || 'filePanel'}.displayName`} defaultMessage={plugin?.profile.displayName || plugin?.profile.name} />
         </h6>
         <div className="d-flex flex-row">
           <div className="d-flex flex-row">