Uncaught Server Exception In your website

[cpsolution]

Please notice that this link on your website https://erpnext.org/docs/user/manual/en/customize-erpnext/custom-scripts/custom-script-examples/make-read-only-after-saving
it seems there is an error on your site, please check this one.

[clarkej]

Thanks for reporting this, that issue is recorded here custom script example in docs raises Illegal Template exception · Issue #409 · erpnext/foundation · GitHub

edit: Here’s the source code https://github.com/erpnext/foundation/blob/master/foundation/www/docs/user/manual/en/customize-erpnext/custom-scripts/custom-script-examples/make-read-only-after-saving.md