求助 安装UI.XThemeAdd-on无法安装刷新后报错

[梦溪MengXi]

无法安装UI.X ThemeAdd-on插件，刷新后全局报错
报错信息如下：

An exception occurred: [Exception] Could not find class DohTheme\Core\XF\Template\Templater when attempting to extend XF\Template\Templater in src/XF/Extension.php on line 176

1. XF\Extension->extendClass() in src/XF/App.php at line 2867
2. XF\App->extendClass() in src/XF/App.php at line 1818
3. XF\App->setupTemplaterObject() in src/XF/App.php at line 1380
4. XF\App->XF\{closure}() in src/XF/Container.php at line 31
5. XF\Container->offsetGet() in src/XF/App.php at line 3243
6. XF\App->templater() in src/XF/Pub/App.php at line 439
7. XF\Pub\App->preRender() in src/XF/Mvc/Dispatcher.php at line 397
8. XF\Mvc\Dispatcher->render() in src/XF/Mvc/Dispatcher.php at line 60
9. XF\Mvc\Dispatcher->run() in src/XF/App.php at line 2351
10. XF\App->run() in src/XF.php at line 517
11. XF::runApp() in index.php at line 20