Hi,
I’m new to HA and I would to thank anybody who spent effort on the development of HA and all other possibilities.
I accidentally pressed “Take over” instead of cancel. Now my entities/cards are not updating automatically anymore. How can I restore this action?
I do not think you can get that Dashboard back, but you can make a new one that will repopulate automatically.
Open your dashboard which you have taken over.
Click the three dots in the upper right corner and choose Edit dashboard.
Click the three dots again and choose Manage dashboards.
Click the + Add dashboard button in the lower right corner.
Give it a title, icon and maybe an url and press Create.
Click the open link and see if that is like you want it.
If it is then click back and click the name of the new dashboard and set it as default on this device.
I do not think you can not delete the original one, but you can hide it and beside I bet you will soon be altering your dashboards manually anyway. 
Thank you for your reply. I understand.
So no way to get the original overview (which you can’t delete) back to automatic?
To revert back to using the UI to edit your dashboard, remove the lovelace section from your configuration.yaml and copy the contents of your ui-lovelace.yaml into the raw configuration section of Home Assistant and restart.
Thank you for reply. I don’t see the lovelace section from my configuration.yaml?
Yes there is. It’s actually pretty easy. Click the 3 dots to edit the dashboard. Then click it again and go to “Raw configuration editor”. Delete everything (all the YAML) and save. Click “Remove” in this pop-up:
You will now be back to an autogenerated dashboard.
This is not correct anymore. Please update your answer or strike it through.
My man, if everybody had to update every historical comment or answer because the software changed, nobody will get anything done around here. That comment was correct at the time. Instead of instructing me, do the obvious thing and post an update.