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 ('d783d6f35a7f28d1ae3572d97729ab07', -1, 1713579431, 1713579431, '038ec5c6', -1, 0, 0)

Line : 187
File : sessions.php