phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO ceburekas_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('dc38dd4eb6721a61d14adaa2eddb544b', -1, 1713606888, 1713606888, '038ec5c6', 0, 0, '0', '0')

Line : 175
File : sessions.php