phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dad5129b5c85f28e99faa723e543b8fe' 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 ('dad5129b5c85f28e99faa723e543b8fe', -1, 1788965986, 1788965986, 'd849d94f', -4, 0, 0)

Line : 187
File : sessions.php