This indicates an internal server error. Try to install v24.6.28.1694 as most often an incomplete installation or a broken version causes this to happen. Make sure you use the github repository at https://github.com/Manager-io/Manager and choose the correct implementation that is supported by your server’s processor.
We do not provide installation service. Server edition works as a custom web-server. If you do not have an experience with web-servers, please seek local IT specialist or sign up for cloud edition.
As Server and Cloud editions are identical and usually an internal server error indicates a bug such usually would be reported by more users. So as a first step install the latest version. If problem still persist show a screenshot.
Thank you Very much for you advice;
I have done as advised and the issue has been resolved
We are in the process of buying a one option and are checking both versions so as explore best deployment options.
We have a Local IT person.We want to use on premise server so as to facilitate DATA sharing among our team members.We will purchase the right license once we are set.