phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO dentereclong_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('127ab43305686c2f93628f5d23795014', -1, 1711638403, 1711638403, '345b0044', -6, 0, '0', '0')

Line : 175
File : sessions.php