phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '77e9d509a0f521f1a074ebc927e65a17' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('77e9d509a0f521f1a074ebc927e65a17', -1, 1765994200, 1765994200, 'd849d816', -4, 0, 0)

Line : 187
File : sessions.php