phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '21a5c28621b4be7d878931b589eed8b1' 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 ('21a5c28621b4be7d878931b589eed8b1', -1, 1714218781, 1714218781, '038e0cf0', 4, 0, 0)

Line : 187
File : sessions.php