Smartthings Integration - can't change webhook; can't delete integration or reinstall!

In the Smartthings Integration, I get an error:

Home Assistant is not configured correctly to receive updates from SmartThings. The webhook URL is invalid:

http://192.168.0.124:8123/api/webhook/f9a3e774275ba9d7f7290bf58a222c03374601dcba3f0db66e77a22c34903dd95

Please update your configuration per the [instructions](https://www.home-assistant.io/integrations/smartthings/), restart Home Assistant, and try again.

I understand the problem and would like to update the settings for this integration to provide the appropriate webhook using https (I use Cloudflared, and this shouldn’t be a problem). But I have no menu anywhere to update the configuration. I also have no menu to delete the integration and just start from scratch, which would. I think there used to be a “three dots” menu in the upper-right corner of a given integration, but none of my integrations have this.

I can select the three dots menu under “needs attention” and choose delete there:

While this deletes my existing entities and seemingly deletes the integration, when I try to re-add the integration, i immediately get the same error (Home Assistant is not configured correctly to receive updates from SmartThings. The webhook URL is invalid . . .).

I have tried to remove the smartthings file under .storage but when I restart Home Assistant, this file is regenerated. I just need to reconfigure the webhook url! Any ideas?