phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'adf270d4b5712f8201d264ff9d043279' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('adf270d4b5712f8201d264ff9d043279', -1, 1789682674, 1789682674, 'd849d900', -4, 0, 0)

Line : 187
File : sessions.php