phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ad120ca7db51d4135aa3b74267294858' 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 ('ad120ca7db51d4135aa3b74267294858', -1, 1776810939, 1776810939, 'd849d974', 35, 0, 0)

Line : 187
File : sessions.php