🇮🇳India @deepvyasnew

Hi , 

I am interested to help rebuild website on latest version. 

Please let me know your expectations in detail

Regards
Deep 

Hi , 

I would like to offer my professional services. 

Please connect further to discuss 

Regards
Deep 

Hi Richel , 

I can help you manage the exception occur in your Drupal 7 site. 

Please let me know If you are still open for hiring. 

Looking forward to your reply 

Regards
Deep 

Agree to @Peter reply its possible API are outdated. 
So please share the error to review and help you 

 many of the internal links route to the primary domain and not the subdomain

Did you once check the .htaccess file for redirect rules ?