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 ('c4addb08043d364f326e1e196e91a4a4', -1, 1747594450, 1747594450, '12768cba', 2, 0, 0)

Line : 190
File : sessions.php