phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '572a6217b809fbf5f4dea25047354145' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('572a6217b809fbf5f4dea25047354145', -1, 1526858511, 1526858511, '36510016', -2, 0, 0)

Line : 186
File : sessions.php