emacs 27.1 can not init with miss darkburn-theme

[heysion]

emacs 27.1

emacs.d commit: 4a5776a

debug-init message:

Debugger entered--Lisp error: (error "Package ‘darkburn-theme-’ is unavailable")
  signal(error ("Package ‘darkburn-theme-’ is unavailable"))
  error("Package `%s-%s' is unavailable" darkburn-theme "")
  package-compute-transaction(nil ((darkburn-theme)))
  package-install(darkburn-theme)
  (if (package-installed-p package min-version) nil (if (or (assoc package package-archive-contents) no-refresh) nil (message "Missing package: %s" package) (package-refresh-contents)) (package-install package))
  require-package(darkburn-theme)
  (let ((theme (car --dolist-tail--))) (require-package theme) (setq --dolist-tail-- (cdr --dolist-tail--)))
  (while --dolist-tail-- (let ((theme (car --dolist-tail--))) (require-package theme) (setq --dolist-tail-- (cdr --dolist-tail--))))
  (let ((--dolist-tail-- my-color-themes)) (while --dolist-tail-- (let ((theme (car --dolist-tail--))) (require-package theme) (setq --dolist-tail-- (cdr --dolist-tail--)))))
  (if my-disable-idle-timer nil (let ((--dolist-tail-- my-color-themes)) (while --dolist-tail-- (let ((theme (car --dolist-tail--))) (require-package theme) (setq --dolist-tail-- (cdr --dolist-tail--))))) (if *emacs27* (progn (require-package 'darktooth-theme) (require-package 'modus-themes))))
  eval-buffer(#<buffer  *load*-302075> nil "<<private-user>>.emacs.d/lisp/init-elpa.el" nil t)  ; Reading at buffer position 15958
  load-with-code-conversion("<<private-user>>.emacs.d/lisp/init-elpa.el" "<<private-user>>.emacs.d/lisp/init-elpa.el" t t)
  load("<<private-user>>.emacs.d/lisp/init-elpa" t t)
  (progn (load (file-truename (format "%s/%s" my-lisp-dir pkg)) t t))
  (if (or (not maybe-disabled) (not my-lightweight-mode-p)) (progn (load (file-truename (format "%s/%s" my-lisp-dir pkg)) t t)))
  require-init(init-elpa)
  (let* ((file-name-handler-alist nil)) (require-init 'init-autoload) (require-init 'init-modeline) (require-init 'init-utils) (require-init 'init-file-type) (require-init 'init-elpa) (if my-disable-idle-timer (progn (my-add-subdirs-to-load-path (file-name-as-directory my-site-lisp-dir)))) (require-init 'init-spelling t) (require-init 'init-ibuffer t) (require-init 'init-ivy) (require-init 'init-windows) (require-init 'init-javascript t) (require-init 'init-org t) (require-init 'init-python t) (require-init 'init-lisp t) (require-init 'init-yasnippet t) (require-init 'init-cc-mode t) (require-init 'init-linum-mode) (require-init 'init-git) (require-init 'init-gtags t) (require-init 'init-clipboard) (require-init 'init-ctags t) (require-init 'init-gnus t) (require-init 'init-lua-mode t) (require-init 'init-term-mode) (require-init 'init-web-mode t) (require-init 'init-company t) (require-init 'init-chinese t) (require-init 'init-keyfreq t) (require-init 'init-httpd t) (require-init 'init-theme) (require-init 'init-essential) (require-init 'init-misc t) (require-init 'init-emms t) (require-init 'init-emacs-w3m t) (require-init 'init-shackle t) (require-init 'init-dired t) (require-init 'init-writting t) (require-init 'init-hydra) (require-init 'init-evil) (if my-lightweight-mode-p (progn (require-init 'init-ediff))) (if my-disable-idle-timer nil (my-add-subdirs-to-load-path (file-name-as-directory my-site-lisp-dir))) (require-init 'init-no-byte-compile t) (if my-lightweight-mode-p nil (setq custom-file (expand-file-name (concat my-emacs-d "custom-set-variables.el"))) (if (file-exists-p custom-file) (load custom-file t t)) (load (expand-file-name "~/.custom.el") t nil)))
  eval-buffer(#<buffer  *load*> nil "<<private-user>>.emacs.d/init.el" nil t)  ; Reading at buffer position 6127
  load-with-code-conversion("<<private-user>>.emacs.d/init.el" "<<private-user>>.emacs.d/init.el" t t)
  load("<<private-user>>.emacs.d/init" noerror nomessage)
  startup--load-user-init-file(#f(compiled-function () #<bytecode 0x1573215a488d>) #f(compiled-function () #<bytecode 0x1573215a48a1>) t)
  command-line()
  normal-top-level()

[redguardtoo]

What's darkburn-theme? My setup doesn't install it.