This is a normal issue and routine procedure of government websites In this time span the websites resolve the existing technical faults, speed-related issues and more technical terminology-related things. Such as server limit updating or changing the interface (i.e outlook of the website ) . The same is the case with the Jk Pmsss website.
You need not to worry if the same issue is faced by you it will be resolved in a day or two and you can expect many changes and new notifications after the website is up after maintenance . You can expect the official notification release by AICTE for pmsss 2021-2022 registration process soon .