phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9d01e3bbbb16a5cd53648b983d38e03e' 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 ('9d01e3bbbb16a5cd53648b983d38e03e', -1, 1771086777, 1771086777, 'd849d88a', 13, 0, 0)

Line : 187
File : sessions.php