phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'cecb78701811c7a51fc7e237b939893e' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cecb78701811c7a51fc7e237b939893e', -1, 1769289775, 1769289775, 'd849d802', -9, 0, 0)

Line : 187
File : sessions.php