phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dff5397628e524dbbd2e7723c6db3154' 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 ('dff5397628e524dbbd2e7723c6db3154', -1, 1713960860, 1713960860, '12760cde', 4, 0, 0)

Line : 187
File : sessions.php