phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a1a9c2da831f046ab007b73e8a1fe44d' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a1a9c2da831f046ab007b73e8a1fe44d', -1, 1715492672, 1715492672, '12778a7b', -4, 0, 0)

Line : 187
File : sessions.php