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 ('1b1ef129c9061a2fc511f71cf8c380a5', -1, 1714805582, 1714805582, '038b6bf1', 2, 0, 0)

Line : 187
File : sessions.php