Solved: Bricks error “Error No postId provided!”
Randomly got an “Error No postId provided!” error in Bricks? Here’s a workaround!

The cause (in my case)
I had a template being applied to an individual page which I didn’t require – so I simply deleted the template.
The workaround
Go to WordPress Admin > Settings > Permalinks > Save your permalink structure (twice!)
That should be it!