phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dd193669f26248325c25bc68da6df15e' 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 ('dd193669f26248325c25bc68da6df15e', -1, 1771778143, 1771778143, 'd849d890', 1, 0, 0)

Line : 187
File : sessions.php