You need one more } in your appsettings JSON file, your Visual Studio is trying to help you by putting a green squiggle under line 38.
Your error message also says there is an open JSON object or array that should be closed and gives you the line number 37.
Can I suggest you sometimes copy and paste the file contents in the forum, as opposed to screenshots as it can be a little harder to debug and help and use the code button to help insert a code block.
Let us know if the missing } fixes the problem for you.