phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c9bf90a6c7805d004c1de3883d912b07' 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 ('c9bf90a6c7805d004c1de3883d912b07', -1, 1714200869, 1714200869, '038a7d02', -4, 0, 0)

Line : 187
File : sessions.php