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 ('00c1f667d0cc5ef4ff3f7530f37064cb', -1, 1748866444, 1748866444, '12df8647', -9, 0, 0)

Line : 190
File : sessions.php