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 ('5ba869da8a3f1f3983e92b26bce17db0', -1, 1752970940, 1752970940, '12610e59', 3, 0, 0)

Line : 189
File : sessions.php