phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b921aceea694ea8c0f768cbc03d2d09f' 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 ('b921aceea694ea8c0f768cbc03d2d09f', -1, 1715306755, 1715306755, '12db166b', -4, 0, 0)

Line : 187
File : sessions.php