phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5a1ccd6671fa92840939dd22c1b92ece' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('5a1ccd6671fa92840939dd22c1b92ece', -1, 1771352117, 1771352117, 'd849d87b', -9, 0)

Line : 180
File : /www/includes/sessions.php