phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dff7d4e3c8822e21ae4f25592fbe2041' 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 ('dff7d4e3c8822e21ae4f25592fbe2041', -1, 1757847997, 1757847997, 'd849d822', -4, 0, 0)

Line : 187
File : sessions.php