5.7 default page and header

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I have tried to get an old theme working in 5.7

With 5. 7 I keep getting an error Call to a member function getPageThemeGridFrameworkRowStartHTML() on a non-object with this highlighted.

<?php echo $gf->getPageThemeGridFrameworkRowStartHTML()?>


Would someone please tell what I have to change do something as simple as call a header and footer?

TIA

 

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