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 ('96194c830f24c069b61f78c56cc86980', -1, 1713426942, 1713426942, '038eabb4', -10, 0, 0)

Line : 187
File : sessions.php