phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dfac86cb0be0c23af3f5ef716683e8e3' 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 ('dfac86cb0be0c23af3f5ef716683e8e3', -1, 1714355541, 1714355541, '12e02544', 2, 0, 0)

Line : 187
File : sessions.php