phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e39efd2f6e8433394b19f6439f3366fe' 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 ('e39efd2f6e8433394b19f6439f3366fe', -1, 1769886107, 1769886107, 'd849d851', -4, 0, 0)

Line : 187
File : sessions.php