phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7a21647b714b250c05a3236ab07e18cb' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7a21647b714b250c05a3236ab07e18cb', -1, 1715787755, 1715787755, '12d839cf', -4, 0, 0)

Line : 187
File : sessions.php