Resolved After server crashed, WF is unhappy

An auto-update of Plesk crashed our server and the filesystem was damaged. We tried to repair this tonight. Just wanted to open the forums again and run into this error. I´m unsure how to solve that. Could you gimme a hand on this, @ChrisD ?

An exception occurred: file_put_contents(/var/www/vhosts/host.com/httpdocs/internal_data/WidgetFramework/cache/forum/list/pc1/lock/s4.bin): failed to open stream: Permission denied in /var/www/vhosts/host.com/httpdocs/library/WidgetFramework/Model/Cache.php on line 348

1. XenForo_Application::handlePhpError()
2. file_put_contents() in WidgetFramework/Model/Cache.php at line 348
3. WidgetFramework_Model_Cache->_file_setCache() in WidgetFramework/Model/Cache.php at line 112
4. WidgetFramework_Model_Cache->setCache() in WidgetFramework/Model/Cache.php at line 166
5. WidgetFramework_Model_Cache->acquireLock() in WidgetFramework/WidgetRenderer.php at line 689
6. WidgetFramework_WidgetRenderer->render() in WidgetFramework/Core.php at line 499
7. WidgetFramework_Core->renderWidget() in WidgetFramework/Core.php at line 461
8. WidgetFramework_Core->renderWidgets() in WidgetFramework/Core.php at line 428
9. WidgetFramework_Core->_renderWidgetsFor() in WidgetFramework/Core.php at line 311
10. WidgetFramework_Core->renderWidgetsFor() in WidgetFramework/Listener.php at line 127
11. WidgetFramework_Listener::template_post_render()
12. call_user_func_array() in XenForo/CodeEvent.php at line 58
13. XenForo_CodeEvent::fire() in XenForo/Template/Abstract.php at line 195
14. XenForo_Template_Abstract->render() in XenForo/Template/Public.php at line 110
15. XenForo_Template_Public->render() in XenForo/ViewRenderer/HtmlPublic.php at line 124
16. XenForo_ViewRenderer_HtmlPublic->renderContainer() in XenForo/FrontController.php at line 639
17. XenForo_FrontController->renderView() in XenForo/FrontController.php at line 158
18. XenForo_FrontController->run() in /var/www/vhosts/myhost.com/httpdocs/index.php at line 13

 

Thanks, that did the trick.

OT: Is your server having problems, too? The site loads forever (>3 minutes) on each page for me.