Hello.
This issue can occur if, when installing the certificate in the "Web administration > SSL Certificate" or "AnywhereUSB > TLS identity certificate" field, you copied the private key and the hub certificate, but did not add the certificate of the CA itself.
https://blog.it-kb.ru/2021/10/08/digi-anywhereusb-24-plus-anywhereusb-manager-error-ssl-server-verification-passed-in-error-20-unable-to-get-local-issuer-certificate/