phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8c608a17676290cde0f0073cd76bf6ea' 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, priv_session_id) VALUES ('8c608a17676290cde0f0073cd76bf6ea', -1, 1781857858, 1781857858, '6817f35c', -9, 0, 0, 'b673b5fc948cc737313159c242e896c1')

Line : 187
File : sessions.php