phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dfe9ca1b40e80535ad2ff577ac6a6fe1' 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 ('dfe9ca1b40e80535ad2ff577ac6a6fe1', -1, 1765090380, 1765090380, 'd849d8de', -2, 0, 0)

Line : 187
File : sessions.php