I dont know why this happened. But org-babel-load-languages

did not exists.

bundle/custom_gnu.el

@@ -30,6 +30,19 @@
  '(olivetti-body-width 73)
  '(org-adapt-indentation t)
  '(org-agenda-files (quote ("~/Documents/journal")))
+ '(org-babel-load-languages
+   (quote
+    ((js . t)
+     (gnuplot . t)
+     (emacs-lisp . t)
+     (python . t)
+     (sqlite . t)
+     (lisp . t)
+     (shell . t)
+     (css . t)
+     (calc . t)
+     (plantuml . t)
+     (dot . t))))
  '(org-babel-python-command "python3")
  '(org-default-notes-file "~/Documents/journal/notes.org")
  '(org-html-htmlize-output-type nil)