Hi, i have this error after moved site on new hosting

php version 5.6

Hi, weird error. Is this happening on all pages, or just a single page? In this case, can you post the page header?

What version of PHP are you running on the new site? It could be running PHP 5.5 that is triggering that error. Grav needs Grav 5.6+, and PHP 7.0 is preferred.