phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f35efb0e9a68967354509ff3078dac66' 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 ('f35efb0e9a68967354509ff3078dac66', -1, 1770729091, 1770729091, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php