phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0df8ee0217713b79b51e9ff2dbc909e7' 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 ('0df8ee0217713b79b51e9ff2dbc909e7', -1, 1766170566, 1766170566, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php