This error has a help item: https://en.wikipedia.org/wiki/Help:EasyTimeline_syntax#EasyTimeline_code_with_a_template_parameter_is_not_allowed
but it is ambiguous as to whether or not templates should or shouldn't work. The EasyTimeline in
had embedded links, to which a bot added "dead link" templates (correctly, as links are dead) but this created a list of "invalid attributes" within the body of the article in very large sized text.
The questions I have are: Is there a way to get the timeline to handle templates, if not, either is there any way to have the error messages be more inconspicuous in the article, or is there an alternative timeline type available? Thanks.