phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a2b7423fc5a52f968a1aa4599835149f' 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 ('a2b7423fc5a52f968a1aa4599835149f', -1, 1739138044, 1739138044, '0393412a', 3, 0, 0)

Line : 187
File : sessions.php