phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '55afe763a549a094da1637c91dfc0055' 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 ('55afe763a549a094da1637c91dfc0055', -1, 1768707016, 1768707016, '00000000', 19, 0, 0)

Line : 187
File : sessions.php