error in localhost:3000 display like "Query root type must be provided."

[AbdulRehman-003]

my node version 22.0 and pgsql version 17.0 and it create the successful connected with database. but when i open it into localhost: 3000. and then its give me the error on localhost:3000 "Query root type must be provided". please give me the solution , i will be grateful to you.