Nostra: The sSTRK and xSTRK feed information is incorrect, or the otherwise safe position is liquidated

Nostra Finance, the Starknet Ecosystem DeFi protocol, said in a post that it found a serious problem with the feed information of xSTRK and sSTRK, which caused its value to increase approximately threefold between blocks 1256310 and 1256360 on March 24 (e.g., xSTRK rose from $0.1793 to $0.5897). This increase in feed data may cause otherwise safe positions to be unnecessarily liquidated. With no backup oracle available to support these assets, Nostra cannot completely prevent similar events from happening.
In order to safeguard the safety of users' funds, Nostra has decided to immediately reduce the collateral ceiling for sSTRK and xSTRK to zero, and no longer allow their use for new mortgages. It is recommended that sSTRK and xSTRK users withdraw their collateral as soon as possible. Nostra will continue to monitor the situation and update the next steps to reassess the reliability and feasibility of the price feeding information for xSTRK and sSTRK.