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) VALUES ('015c3063e8f0f8a9c106f85b0182a9fe', -1, 1714233702, 1714233702, '1276019e', -2, 0)

Line : 158
File : sessions.php