Error: EISDIR: illegal operation on a directory, read

Server Error
Error: EISDIR: illegal operation on a directory, read
This error happened while generating the page. Any console logs will be displayed in the terminal window.
chown -R
$ chown -R xgqfrms-mm ./posts
https://www.cnblogs.com/xgqfrms/p/13276627.html
Node.js
https://nodejs.org/api/fs.html#fspromisesreaddirpath-options
https://nodejs.org/api/fs.html#fsreaddirsyncpath-options
https://nodejs.dev/en/learn/reading-files-with-nodejs/
https://www.cnblogs.com/xgqfrms/p/16930760.html