phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '31366b297ed1c454a7e97b1d0ea3d26e' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('31366b297ed1c454a7e97b1d0ea3d26e', -1, 1770078159, 1770078159, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php