phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1b3404e5f6e5f1571e2e27b6b55c3daa', -1, 1737632654, 1737632654, '038e8399', 5, 0, 0)

Line : 187
File : sessions.php