Error: EISDIR: illegal operation on a directory, read

I get a lot of following errors on start:

```
{ [Error: EISDIR: illegal operation on a directory, read] errno: -21, code: 'EISDIR', syscall: 'read' }
{ [Error: EISDIR: illegal operation on a directory, read] errno: -21, code: 'EISDIR', syscall: 'read' }
{ [Error: EISDIR: illegal operation on a directory, read] errno: -21, code: 'EISDIR', syscall: 'read' }
```

What can be the issue?
