Microsoft Project Server 2013 was released in 2012 and is no longer up to date. Support for this version expired in October 2015. Extended Support will also end soon, in October 2020.
The seventh generation of the Project Server is now available. You can find out more about the current on-premises version here: Microsoft Project Server 2019.
If you are interested in the cloud version, there is more information about Project Online here.
If you are still working with an earlier version of Project Server, you should know the end dates for mainstream support and the chargeable extended support of your versions. The deadlines are:
If your IT department makes a point of using only products for which support is still provided, you should consider changing even to the most recent version – Project Server 2019.