Fatal error in startup of es-command-center

[corrafig]

Communication with Elasticsearch does work (C-c C-c) but es-command-center fails to start.

Environment

• Doom Emacs
• GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.23, cairo version 1.16.0) of 2020-11-08, modified by Debian
• Elasticsearch 7.11.0

How to reproduce

1. M-x es-command-center

Result

1. Fetching stats...
2. Blank screen

error in process filter: mapcar: Symbol’s function definition is void: first
error in process filter: Symbol’s function definition is void: first
error in process filter: mapcar: Symbol’s function definition is void: first
error in process filter: Symbol’s function definition is void: first
mapcar: Symbol’s function definition is void: first
error in process filter: mapcar: Symbol’s function definition is void: first
error in process filter: Symbol’s function definition is void: first
error in process filter: mapcar: Symbol’s function definition is void: first
error in process filter: Symbol’s function definition is void: first
error in process filter: mapcar: Symbol’s function definition is void: first
error in process filter: Symbol’s function definition is void: first
mapcar: Symbol’s function definition is void: first

[corrafig]

Update: It starts to work after loading the deprecated cl.