phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e7e864b27523c289f7d23359f3fb8a82' 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 ('e7e864b27523c289f7d23359f3fb8a82', -1, 1771809819, 1771809819, 'd849d8dd', -9, 0, 0)

Line : 187
File : sessions.php