phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0' for key 7

INSERT INTO dbonarena_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, session_hash) VALUES ('12124e7146c58ad8be0e44086cbc41f4', -1, 1488087396, 1488087396, '369eae54', 0, 0, 0, 'c31ccfaeba352fff7d041dafac38d50b')

Line : 211
File : sessions.php