Clearing Safari cache on MAC fails

Hi,


I recently started the process of creating a blog. When changing some Wordpress plugin settings, I noticed that the changes were not displayed in real time. As a result, I tried to delete Safari history and offline data. Unfortunately, this fails with an error of PushNotifications.GetAll, 22. There is no way to delete the cache, and I am stuck. Does anyone have any ideas on how to fix the problem?