phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('69c2d6a0e7db2c59f8ead86f74df6ebd', -1, 1713584411, 1713584411, '12e175b7', -11, 0, 0)

Line : 187
File : sessions.php