This extension used the deprecated hook ParserSectionCreate, for which no replacement exists. Supposedly core is supposed to work in something that can be used to replace it, but this does not currently exist to my knowledge.
Just to note it also uses the deprecated SkinTemplateOutputPageBeforeExec hook which should be replaced. I do think it's possible to replace both hooks with this extension though. Even removing the ParserSectionCreate hook can be done, just removes a feature and configuration variable also.