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 ('0838c2d8308a25af243b088274371518', -1, 1737593768, 1737593768, '1276ffa1', -9, 0, 0)

Line : 187
File : sessions.php