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 ('3fa0e7fedecf71ca70cb6ff3300b7da4', -1, 1747588960, 1747588960, '12bc92df', 2, 0, 0)

Line : 190
File : sessions.php