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 ('eb6df62ed70f0f3d659e0509b4c8de35', -1, 1713536507, 1713536507, '030fc12d', -10, 0, 0)

Line : 187
File : sessions.php