[Brellium]

non-paywall source:

https://thenewsdept.com/economy/65475.html

"It was noted that part of the capacity will be transferred to the Sudzha reception point located in the territory controlled by the Ukrainian authorities, in order to prevent violations with the European partners."

The article further notes that at the start of the invasion flow was cut by 80% and the cut is being done due to withdraws at the sites it cannot access which put the entire pipeline at risk.

[Robert DeLong]

There is no paywall at Reuters that I see.

[Ultra Sonic 007]

The article further notes that at the start of the invasion flow was cut by 80%

Not quite; the invasion wasn't cited by your source as the reason, but rather because of competing interest with another pipeline between Russian and Germany: "Recall that at the beginning of 2022 gas transit through Ukraine was reduced to a minimum due to Gazprom’s attempts to complete the Nord Stream 2 project. According to the available data, the average daily gas transit volume for the first 16 days of the year was only 52.4 million cubic meters. For comparison, the transit volume in the same period of 2019 exceeded 250 million cubic meters. m, in 2020 – 83.4 million cubic meters. m, and in 2021 – 124.6 million cubic meters. "

This would have been before the invasion began in February, for what it's worth.