phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '251f1d35879790be4879dabbc78a1eee' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('251f1d35879790be4879dabbc78a1eee', -1, 1790569438, 1790569438, 'd849d824', 3, 0, 0)

Line : 187
File : sessions.php