phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dad94f5f68955fdeb9e3fa121df98d09' 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 ('dad94f5f68955fdeb9e3fa121df98d09', -1, 1770526171, 1770526171, '00000000', -501, 0, 0)

Line : 187
File : sessions.php