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 ('833b4ead2c3fdf476a83b7f58b3b6096', -1, 1714515394, 1714515394, '038b5217', -11, 0)

Line : 158
File : sessions.php