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 ('f0e4b12043969e14c8ec1747a5ebdb75', -1, 1714756014, 1714756014, '0311440e', -10, 0)

Line : 158
File : sessions.php