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 ('c2c026d7dc19f346963c1268f3431a6c', -1, 1714394930, 1714394930, '038d1ea2', 7, 0)

Line : 158
File : sessions.php