phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a9b5c7f268500ad3905dad253e3e59b4' 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 ('a9b5c7f268500ad3905dad253e3e59b4', -1, 1714355370, 1714355370, 'c0a80201', 31, 0, 0)

Line : 187
File : sessions.php