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 ('39d7a47fee8fbfc12c2a460def7fd4b1', -1, 1711704851, 1711704851, '2cde8a46', 0, 0, 0)

Line : 193
File : sessions.php