Group shown as "Other Items"

For reasons unknown to me, a section that should be named `🔥 Hoy` shows as `Other items` (shown in the screenshot above). This is my org-super-agenda and org-mode configuration:

```emacs-lisp
(leaf org
:ensure '(org :type built-in)
:hook (org-mode-hook . visual-line-mode)
:bind (:global-map
("C-c l s" . org-store-link)
("C-c l i" . org-insert-link-global))
:custom
(org-directory . "~/Documentos/org")
(org-agenda-files . '("todoist.org"))
(org-tag-list . '(
(:startgroup) ;; que he usado en Todoist
("gastos" . ?g)
("hogar" . ?h)
("seguridad" . ?s)
("bienestar-material" . ?b)
("salud" . ?a)
("estudio" . ?e)
("salud-espiritual" . ?c)
("secundarios" . ?u)
(:endgroup)
(:newline)
(:startgroup)
("leer" . ?l)
("email" . ?m)
(:endgroup)))
(org-refile-targets . '((nil :maxlevel . 9) ;; https://www.reddit.com/r/emacs/comments/4366f9/comment/czg008y/
(org-agenda-files :maxlevel . 9)))
(org-outline-path-complete-in-steps . nil) ;; Refile in a single go
(org-refile-use-outline-path . t) ;; Show full paths for refiling
(org-export-with-smart-quotes . t)
(org-todo-keywords . '((sequence "PENDIENTE(p)" "|" "TERMINADO(t!)" "CANCELADO(c@)")))
(org-todo-keyword-faces . '(("PENDIENTE" . "red") ("CANCELADO" . "purple") ("TERMINADO" . "green")))
(org-list-indent-offset . 2)
(org-todoist-api-token . `,(with-temp-buffer
(insert-file-contents (getenv "EMACS_TODOIST_FILE_SECRET"))
(buffer-string)))
(org-agenda-span . 'day) ;; La vista diaria por defecto
(org-agenda-start-day . nil) ;; "nil" = hoy
(org-agenda-start-on-weekday . nil)
(org-agenda-skip-deadline-if-done . t)
(org-agenda-skip-scheduled-if-done . t)
(org-agenda-skip-timestamp-if-done . t)
(org-agenda-show-all-dates . t)
:config
(add-to-list 'org-export-backends 'md)
;; Make org-open-at-point follow file links in the same window
(setf (cdr (assoc 'file org-link-frame-setup)) 'find-file))

(leaf org-todoist
:require t
:ensure '(org-todoist
:host github
:repo "lillenne/org-todoist"
:branch "main"
:files ("org-todoist.el"))
:custom
(org-todoist-todo-keyword . "PENDIENTE")
(org-todoist-done-keyword . "TERMINADO")
(org-todoist-deleted-keyword . "CANCELADO")
(org-todoist-delete-remote-items . t)
(org-todoist-extract-deleted . nil)
:config
(setq org-capture-templates
`(("s" "Todoist")
;; Capture a TODO directly to the inbox
("sq" "Bandeja de entrada" entry (file+olp ,(org-todoist-file) "Inbox" ,org-todoist--default-section-name) "* PENDIENTE %?")
("si" "Bandeja de entrada" entry (file+olp ,(org-todoist-file) "Inbox" ,org-todoist--default-section-name) "* PENDIENTE %? %^G %^{EFFORT}p \nSCHEDULED: %^t")
;; Capture to a specific project, section, and parent task, creating them if needed.
;; Also prompts for tags, effort, task assignment, scheduled, and deadline times
;; Projects are determined by projectile if possible, otherwise via an interactive prompt
("ss" "Seleccionar proyecto" entry (function org-todoist-find-project-and-section) "* PENDIENTE %^{¿De qué trata la tarea?} %^G %^{EFFORT}p %(org-todoist-assign-task) %(progn (org-schedule nil) nil) %(progn (org-deadline nil) nil)\n%?")
;; Capture a note to an ignored subtree
("sn" "Notas de proyecto" entry (function org-todoist-project-notes) "* %?"))))

(leaf org-modern
:after (org)
:ensure '(org-modern :host github :repo "minad/org-modern" :branch "main")
:custom
(org-auto-align-tags . nil)
(org-tags-column . 0)
(org-catch-invisible-edits . 'show-and-error)
(org-special-ctrl-a/e . t)
(org-insert-heading-respect-content . t)

;; Org styling, hide markup etc.
(org-hide-emphasis-markers . t)
(org-pretty-entities . t)
(org-agenda-tags-column . 0)
(org-ellipsis . "…")
:hook
(org-mode-hook . org-modern-mode)
(org-agenda-finalize-hook . org-modern-agenda))

(leaf org-super-agenda
:after (org)
:ensure '(org-super-agenda :host github :repo "alphapapa/org-super-agenda")
:config
(org-super-agenda-mode)
:custom
(org-super-agenda-groups . '(
(:name "🔥 Hoy"
:time-grid t
:deadline past
:deadline today
:order 1
:face (:foreground "red" :weight bold))
(:name "⏭ Próximos 7 días"
:deadline future
:scheduled future
:order 2)
(:name "🫙 Sin fecha"
:and (:not (:scheduled t) :not (:deadline t))
:order 99
:face (:foreground "gray" :slant italic)))))
```

My Emacs is `GNU Emacs 30.1 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.18.2, Xaw3d scroll bars)`

My org mode is `Org mode version 9.7.11 (release_9.7.11 @ /nix/store/ry6j1iiylssa972chy8ll8m217rh4qz8-emacs-30.1/share/emacs/30.1/lisp/org/)`