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 ('d2f112447b3e54a6f6f49191ae5c8bc0', -1, 1713568881, 1713568881, '038cb97b', -10, 0, 0)

Line : 187
File : sessions.php