After installing NodeBB, I've run into a strange error. I can edit settings and post topics, but I can't purge or disable any of the default categories. I can create new categories, but after I create the category, I can't purge it or disable it. My settings.json is configured correctly, and everything works besides removing categories.
I haven't seen anything in the log files about this, the only error I get originates from output.log:
warn: [plugins/nodebb-widget-essentials] This plugin may not be compatible with your version of NodeBB. This may cause unintended behaviour or crashing.
warn: [plugins/nodebb-widget-essentials] In the event of an unresponsive NodeBB caused by this plugin, run ./nodebb reset plugin="nodebb-widget-essentials".
I've made sure my installation is up to date, and restarted a few times. Is there anything I can do to fix this?