I don't think calendar server installation is possible in a shared hosting. Also, It's an abandoned project. If you are interested I can get you some other options which include free VPSs.
Drop me a messagLisää
We are a team of experienced web designing and development experts. It would be our pleasure to work with you.
We can assure you of the top notch work quality and a quick turnaround. Our service comes with a 30 daLisää