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 ('504ed3d072dab2cca70e0dfb8a979efa', -1, 1713984460, 1713984460, '039368f8', 7, 0, 0)

Line : 187
File : sessions.php