Hi I am getting the following error:

Error: Query root type must be provided.

at assertValidSchema (/app/node_modules/graphql/type/validate.js:59:11)

at ApolloServer.generateSchemaDerivedData (/app/node_modules/@apollo/server/dist/cjs/ApolloServer.js:336:41)

at Object.schemaDerivedDataProvider (/app/node_modules/@apollo/server/dist/cjs/ApolloServer.js:98:77)

at new SchemaManager (/app/node_modules/@apollo/server/dist/cjs/utils/schemaManager.js:21:44)

at new ApolloServer (/app/node_modules/@apollo/server/dist/cjs/ApolloServer.js:96:36)

at startApolloServer (/app/dist/index.js:24:20)

at Object. (/app/dist/index.js:64:1)

at Module._compile (node:internal/modules/cjs/loader:1256:14)

at Module._extensions..js (node:internal/modules/cjs/loader:1310:10)

at Module.load (node:internal/modules/cjs/loader:1119:32)

Node.js v18.18.2

/app/node_modules/graphql/type/validate.js:59

throw new Error(errors.map((error) => error.message).join('\n\n'));

Here is a link to my entry file https://github.com/sibabale/fixa/blob/main/server/src/index.ts