According to Wikipedia, that train isn't in commercial operation:
True. They have been running much smaller public routes to test.
This is the official website of the Superconducting Maglev system by JR Central. This section covers the principles of the Superconducting Maglev system and the design of Series L0 vehicle.
"Currently, the Series L0 and Series L0 Improved version are operating on the Yamanashi Maglev Line. Series L0, started running in 2013, is the first-generation vehicle built with specifications for commercial services.Series L0 improved version, started running in 2020, is the further brushed up version built based on various test data acquired from the original Series L0."
And this is from the very same Wiki YOU
"The first five-car train began test-running at the 42.8 km (26.6 mi) Yamanashi Maglev Test Line in June 2013, following completion of extension and upgrade work at the facility, earlier than the originally scheduled September date."
"After April 2015, the train returned to being used for public preview rides."