It will be very interesting to hear from you the reasons for this "closure", with reference to the source! I hope to hear clarifications - what happened?
The reason given by the Ukrainian side is that Sokhranovka entry point is currently under the control of the rebels and they can't accurately measure the gas flows at that station. That is not a valid reason, because there are several more compressor stations which are controlled by the Kiev regime on this pipeline and the measurement can be made at any of these points. Anyway, with less amount of gas being carried through these pipelines, Ukraine will also receive less amount of transit fees from Gazprom.
Tell me - is this all the information you have? Why the question - in open sources there is a complete picture of what happened on May 11, 2022, and there are no such ambiguous explanations. When studying a topic, do you manage with short excerpts? I strongly recommend that you study what is happening in detail, and preferably from several sources.
But back to your answer, by the way, you never provided a source, and this is important! What is completely true - the specified territory is temporarily occupied by Russian terrorists. This does not allow Ukraine to fulfill contractual obligations and ensure the safety, control and management of compressor stations. Which is quite logical. But Ukraine did not just cut off the gas, as Russia likes to do, the country is a terrorist in every respect. Ukraine officially and openly announced the reasons related to force majeure, and again, as an honest participant in the contractual conditions, observing the interests of European partners, and worried about the safety of its gas transportation system, it proposed a temporary transfer of capacities from Sokhranivka to the Sudzha connection point, which is located on the territory controlled by Ukraine.
Regarding the security of the GTS, anything can be expected from terrorists who without hesitation launch cruise missiles into the centers of peaceful Ukrainian cities, including terrorist attacks against our GTS. Is it logical? I'm sure yes!
And here, for some reason, Russia did not answer in any way and did not transfer traffic to the indicated point, which led to a decrease in gas pumping to the EU. True, the picture that you described is noticeably different from what I provided?
I even cite the official answer, and a link to it: "The operator of the GTS of Ukraine (OGTSU) reports the onset of force majeure circumstances that make it impossible to further transport gas through the Sohranivka GIS and the border compressor station (CS) Novopskov, which located in the occupied territory.
It is noted that at present, the OGTSU cannot exercise operational and technological control over the Novopskov CS and other assets located in the territories temporarily occupied by Russian invaders. In addition, the intervention of the occupying forces in technological processes, changes in the operating modes of GTS facilities, including unauthorized gas withdrawals from the transit flow, jeopardized the stability and security of the entire Ukrainian gas transmission system.
https://www.ukrinform.ru/rubric-economy/3479880-ukraina-vynuzdena-prekratit-transit-gaza-cerez-stanciu-sohranovka.html