phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '39b2e91a955a1ffcba8d094d97a276df' 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 ('39b2e91a955a1ffcba8d094d97a276df', -1, 1765835851, 1765835851, 'd849d803', -4, 0, 0)

Line : 187
File : sessions.php