MongoDB connection gives error: Failed to open a WiredTiger cursor:

We are using MongoDB version 4.0 and when try to connect MongoDB then got this error.

> WiredTiger error (24) [1663392808:381846][2181:0x7f650de7aa80],
> file:collection-21134--4134575628632678244.wt, WT_SESSION.open_cursor:
> _posix_open_file, 715: /var/lib/mongodb/collection-21134--4134575628632678244.wt:
> handle-open: open: Too many open files Raw:
> [1663392808:381846][2181:0x7f650de7aa80],
> file:collection-21134--4134575628632678244.wt, WT_SESSION.open_cursor:
> _posix_open_file, 715: /var/lib/mongodb/collection-21134--4134575628632678244.wt:
> handle-open: open: Too many open files