phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1327655c4bc44b25876cbcf3a6e0c1c9' 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 ('1327655c4bc44b25876cbcf3a6e0c1c9', -1, 1770121843, 1770121843, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php