phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8bd5e0c62ea517f1e1752c434e48e963', -1, 1737632755, 1737632755, '12755e5c', 6, 0, 0)

Line : 187
File : sessions.php