This template is called by other citation templates. This template will display the error message, and add the error category to the page.
This template uses two un-named parameters:
The {{para}} template can be used to show parameters.
Only main, help and template pages will show this message; these pages will be placed into Category:Articles with broken citations.
{{Citation error|no {{para|title}} specified|Cite web}}
Error: no |title=
specified when using {{Cite web}}