UWP appx sideloading issue

We are facing a issue in sideloading app in our production environment. we have signed the app with enterprise trusted certificate. on each user login we run the script to install the appx. but for some users we are getting a error like below Add-AppxPackage : Deployment failed with HRESULT: 0x80073CFF, To install this application you need either a Windows developer license or a sideloading-enabled system. Deployment of package Microsoft.VCLibs.140.00_14.0.26706.0_x64__8wekyb3d8bbwe with package origin Unsigned failed because no valid license or sideloading policy could be applied. A developer license (http://go.microsoft.com/fwlink/?LinkId=233074) or enterprise sideloading configuration (http://go.microsoft.com/fwlink/?LinkId=231020) may be required. the min target version of appx : 10586 max version : 17134 could you help us here ?