phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c47198715bff17ccc6d3aecd3d7ba839' 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 ('c47198715bff17ccc6d3aecd3d7ba839', -1, 1715755970, 1715755970, '038eff71', -8, 0, 0)

Line : 187
File : sessions.php