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 ('407305256d14330686bbd736d354059f', -1, 1737485356, 1737485356, '0381468a', 9, 0, 0)

Line : 187
File : sessions.php