phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8fb500b5d3fec455aba6c2717f5e2823' 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 ('8fb500b5d3fec455aba6c2717f5e2823', -1, 1769074362, 1769074362, 'd849d869', -9, 0, 0)

Line : 187
File : sessions.php