Help me there is a problem with the API and Json. I can't find the dictionary or the blocks are not spelled correctly

JSON111
Blocksss
It’s very difficult to find the cause of the problem and I can’t figure it out in the dictionary or something else.
It should have turned out like this


But for some reason it’s not possible to do this, I can drop the project.
Please help me find solutions to the problem.

Hi sherbakovyt2,

what error do you get?