I got the same error, my host service said the error is:
Failed loading /opt/php54/lib/php/extensions/no-debug-non-zts-20100525/ZendGuardLoader.so: /opt/php54/lib/php/extensions/no-debug-non-zts-20100525/ZendGuardLoader.so: undefined symbol: zend_new_interned_string, referer: http://www.corsifotografia.pro/wp-admin/admin.php?page=ngg_addgallery
Any idea how to fix it?
Thanks it should works now 🙂
