phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9bc38e0ff781907540d5e317e9151f95' 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 ('9bc38e0ff781907540d5e317e9151f95', -1, 1768767292, 1768767292, 'd849d873', 1, 0, 0)

Line : 187
File : sessions.php