phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9abc0627b6dfbb7420cf632a91391854' 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 ('9abc0627b6dfbb7420cf632a91391854', -1, 1553316236, 1553316236, '12cea841', 0, 0, 0)

Line : 187
File : sessions.php