The host at this IP address (23.97.216.47) is either operated by cybercriminals or hosting compromised websites that are being used to distribute malware:
https://vetpro.co.uk/wp-admin/css/colors/invoice/6xg64c77/
https://vetpro.co.uk/wp-admin/css/colors/7r4w-bnt-832835/
AS number: AS8075
AS name: MICROSOFT-CORP-MSN-AS-BLOCK — Microsoft Corporation