payampix

I just have this in control:
https://payami.persiangig.com/other/si.jpg
there is not my instagram feed on website.
I put this code in the footer.php but still nothing:
<?php
do_shortcode(‘[si_feed]’);
?>

I upgrade theme to 1.1.4 but appearance>theme still doesn’t exist

No. ?? This is from dashboard:
Please Note: Any customizations you have made to theme files will be lost. Please consider using child themes for modifications.
Do you think “Appearance>theme” will comeback with upgrade?

I have version of 1.1.2 and there is and update for it. Do you think it would solved with upgrade to 1.1.4?
Actually one of my friend installed it and did some customisations. but I can’t install the theme.
Thank you so much for your help.

Ya this is my another problem!
Appearance->Themes and Appearance->Themes options don’t work and
when click on it appears: “Content not found” or “page not found”
I think I had it but now there isn’t. maybe I do somethings wrong. But I installed Pinboard theme
Do you know why?

I added two another post. no difference. It must be in settings->writing or in general but there isn’t! It’s crazy