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 ('9f052f4de7f3f115afb15e29992a9c22', -1, 1714024516, 1714024516, '12bc2cdf', -1, 0, 0)

Line : 187
File : sessions.php