phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '65a47d3911471dd05e78c7b5f1262597' 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 ('65a47d3911471dd05e78c7b5f1262597', -1, 1766055395, 1766055395, 'd849d8d7', -4, 0, 0)

Line : 187
File : sessions.php