phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9a6be97496e9fb8a822328c873a2f964' 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 ('9a6be97496e9fb8a822328c873a2f964', -1, 1758554688, 1758554688, 'd849d8be', 44, 0, 0)

Line : 187
File : sessions.php