phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '81f0201d8dbe70c26cea602e2a850126' 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 ('81f0201d8dbe70c26cea602e2a850126', -1, 1772156410, 1772156410, 'd849d813', 2, 0, 0)

Line : 187
File : sessions.php