phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ac5f6926ac8adadf8b294005f9710484' 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 ('ac5f6926ac8adadf8b294005f9710484', -1, 1715967717, 1715967717, '030e8d11', -4, 0, 0)

Line : 187
File : sessions.php