phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f9dc24702a3fcc14c263826eddf9e1c8' 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 ('f9dc24702a3fcc14c263826eddf9e1c8', -1, 1765923642, 1765923642, 'd849d819', 9, 0, 0)

Line : 187
File : sessions.php