search – Node/xxx urls sudden appearing on SEO tool Semrush Audit tool as duplicate meta title

I am working on a drupal 8 site. two days back when our seo team run Semrush audit report tool it sudden create a huge list of url by saying duplicate meta title etc what i found in this report its mainly node/xxx pages are sudden start appearing in that list ? how it can be sudden appearing ? No module i installed no code changes. If i wana hide then what should i have to do.
about site structure

i have some content type and paragraph module. my one content type called product for that i only use to Title and Images upload which lator i used in my an other content type (newspage)along with paragraph modules. in newspage i am having a paragraph type where product content type is use as reference so on on newspage many products i can list down

now my newspage title is “Hello World” and i created 4-5 products also with “Hello World”

newspage is node/10 and having alias “decnews”

products are node/5-7

node/5, node/6, node/7 etc

there is no change in content. all pages are feed 2-3 months back. in that time many time we run we run Semrush many time before but never it reported before duplicate meta title. but sudden now it show list of duplicate content link

Double meta title

abc.com/decnews Hello World

abc.com/node/5 Hello World

abc.com/node/6 Hello World

abc.com/node/7 Hello World

……

please guide me what additional i can do to avoid this thing. how i can remove these node/XXX page from crawler next