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 ('dc90fefa1be07ed2e0d8185a295db07e', -1, 1749073984, 1749073984, '12dfd23f', 25, 0, 0)

Line : 190
File : sessions.php