Error: Unexpected token '<', "<!DOCTYPE "... is not valid JSON

[naiserve]

how to fix

GET /posts 500 in 566ms GET /favicon.ico 200 in 85ms ⨯ SyntaxError: Unexpected token '<', "... is not valid JSON at JSON.parse () at async getAllPosts (E:\next-wp-main.next\server\chunks\ssr[root of the server]__14f55d..js:747:19) at async Page (E:\next-wp-main.next\server\chunks\ssr[root of the server]__14f55d..js:1232:19) digest: "259562363" ⨯ SyntaxError: Unexpected token '<', "... is not valid JSON at JSON.parse () at async getAllPosts (E:\next-wp-main.next\server\chunks\ssr[root of the server]__14f55d..js:747:19) at async Page (E:\next-wp-main.next\server\chunks\ssr[root of the server]__14f55d..js:1232:19) digest: "259562363" GET /posts 500 in 597ms GET /favicon.ico 200 in 62ms

[brijr]

When you receive this error it means that the Rest API from your WP isn't readable.

https://jetpack.com/blog/wordpress-rest-api/