phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9e9751a4d0d4a24cf4603e5d6a4a7fbc' 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 ('9e9751a4d0d4a24cf4603e5d6a4a7fbc', -1, 1752944456, 1752944456, 'd849d8cb', -4, 0, 0)

Line : 215
File : sessions.php