phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '70f71a991fde424c2d063aa030621478' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('70f71a991fde424c2d063aa030621478', -1, 1757912969, 1757912969, 'd849d884', 1, 0, 0)

Line : 187
File : sessions.php