MediaWiki:Templatestyles-bad-src
Page $2 must have content model "{{int:content-model-sanitized-css}}" for TemplateStyles (current model is "$3"). Changing the content model can be requested using {{tl|{{#ifeq:{{#invoke:Effective protection level|edit|$1}}|interfaceadmin|edit interface-protected|edit template-protected}}}} on the talk page.