404. That’s an error.

The requested URL /translate_c?depth=1&rurl=translate.google.ru&sl=en&sp=nmt4&tl=ru&u=https://developer.wordpress.org/themes/customize-api/&xid=25657,15700022,15700043,15700186,15700190,15700259,15700271&usg=ALkJrhjLNV9630XTUTD-_2L4c_vE0YkCXw was not found on this server. That’s all we know.