phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2a73900767d70cd7234307f558d9f62d' for key 'sfphpbb_sessions.PRIMARY'

INSERT INTO sfphpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2a73900767d70cd7234307f558d9f62d', -1, 1794452388, 1794452388, 'd849d905', 4, 0, 0)

Line : 187
File : sessions.php