phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5e15c49c1545f3ea44453f88b365d947' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('5e15c49c1545f3ea44453f88b365d947', -1, 1771175386, 1771175386, 'd849d800', 14, 0, 0)

Line : 187
File : sessions.php