phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('78c0f95b26de3f00687acf66c02f5a04', -1, 1737597426, 1737597426, '12777149', 2, 0, 0)

Line : 187
File : sessions.php