Error when i install it. show code

Hello,
I have the theme directory of themes ait.
When I install you plugins, get a code above the head.
I talked to Ait and they told me that is incompatible plugins.
I wanted to buy more of your modules because I love your plugins. But not how to make that mistake coming out is removed.

Error in head say (show this code in head): {if $options->theme->general->favicon != “”} {/if} {includePart parts/seo} {googleAnalytics $options->theme->google->analyticsTrackingId} {wpHead} {!$options->theme->header->customJsCode} {var $searchFormClass = “”} {if $elements->unsortable[search-form]->display} {var $searchFormClass = $elements->unsortable[search-form]->option(‘type’) != “” ? “search-form-type-“.$elements->unsortable[search-form]->option(‘type’) : “search-form-type-1”} {/if} {* usefull for inline scripts like facebook social plugins scripts, etc… *} {doAction ait-html-body-begin} {if $wp->isPage}
{else}
{/if}
{includePart parts/social-icons} {includePart parts/languages-switcher} {includePart “parts/woocommerce-cart”} {includePart portal/parts/header-resources}
{!html_entity_decode($wp->description)}

Can you help me?

https://ww.wp.xz.cn/plugins/wpdiscuz/