phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '96bc6a42a08701526dcf020b920ac324' 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 ('96bc6a42a08701526dcf020b920ac324', -1, 1419236706, 1419236706, '36525972', -1, 0, 0)

Line : 187
File : sessions.php