You may have a limited internet connection and the application may not be able to connect with the servers.There is antivirus blocking the application’s connection to the internet.The developers released an updated fixing error messages and made the old version inaccessible. The error while logging in occurs basically due to:
However, from time to time the developers release an update so users can continue using the online services while making sure that the software is also compliant with the new security regulations. there is no official support available for it. Nexus Mod Manager is in fact depreciated since 2016 i.e. What causes the error ‘Nexus Mod Manager login error’?
