phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '87d9c3d41b2257e5f293027bb595d092' 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 ('87d9c3d41b2257e5f293027bb595d092', -1, 1788065750, 1788065750, 'd849d9b0', 1, 0, 0)

Line : 187
File : sessions.php