Why the number of external links and internal links has decreased

Hi, recently we noticed a worrying issue. When we entered the Google console, we were surprised to see the number for Internal links and External links
Unfortunately, we lost about 20,000 digits in each section, and this worries us about the site being penalized
We didn't do any spamming, we just produced exclusive content
The number of internal links was 170,000, which is now 150,000
but the nimber of external link was 77000 , wich is now 70000
please help me

 

Is traffic to the site up, down, or the same? I've never heard of links falling as an indication of a penalty. You may be seeing a drop in rankings because of the links decreasing though but it's not a penalty.

Internal links shouldn't decrease unless you have changed some of the internal URLs and those pages are now 404ing for the internal links. You can always use a crawler like screaming frog to determine this.
External links always drop off, that's why its important to continue building links.

 

Hi again, no, I didn't change the internal links, we just changed the server, we updated the template website in a period, I'm currently reviewing the links, I still don't know why the number of internal links should be reduced.