I know To little #28

Hello!
Last year I went into this project. I bought all the BUM. Yesterday I did some progress and now I am stuck.
So I know to little on the programming side of RPI HA.
What I did...
SOlder the EZO circuits on carrier board, connected the thing per your scheme.
Installed HA operating system 64bit via this tutorial https://www.home-assistant.io/installation/raspberrypi
Copied all the project files as the instructions were.
1. Now the first problem is that when I check configuration it says

Invalid COnfig

2. Then the lovelace looks like this

lovelace

3. I dont know coding but somehow it doesn't read the sensor data from the atlas_scientific custom components folder...
Should I do something with this since it look like this? (example.yaml filename is ok??)

folder

4. This is how the connection looks like:

Connection

I sure am missing something basic but I just dont know. Can someone please help me, since I bought all this materials and now I dont know how to make them work.
Thank you
Boris