phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8c5ada9051ae4736d8dcb4f85d2aeb32', -1, 1715315950, 1715315950, '0390749f', -1, 0, 0)

Line : 189
File : sessions.php