Thông báo lỗi

• Warning: Cannot modify header information - headers already sent by (output started at /home/taigialo/taimocphat.com/includes/common.inc:2861) trong drupal_send_headers() (dòng 1551 của /home/taigialo/taimocphat.com/includes/bootstrap.inc).
• Error: Class 'Drupal\form_builder\FormBase' not found trong form_builder_cron() (dòng 362 của /home/taigialo/taimocphat.com/profiles/giaidieu/modules/form_builder/form_builder.module).