phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a4031d71392f757b9b25cf5358e79b04' 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 ('a4031d71392f757b9b25cf5358e79b04', -1, 1711615973, 1711615973, '2cdd2e84', 4, 0, 0)

Line : 187
File : sessions.php