A transaction outside Shade’s curves

Program C8pkBqNWgniBbCjDpGsjshCMwxrAcPiX59SGi2G56J6v invoke [1]
Program log: Instruction: BorrowUsdr
Program log: AnchorError thrown in programs/stable-pool/src/instructions/borrow_usdr.rs:150. Error Code: LTVExceeded. Error Number: 6011. Error Message: LTV Exceeded.
Program C8pkBqNWgniBbCjDpGsjshCMwxrAcPiX59SGi2G56J6v consumed 68132 of 200000 compute units
Program C8pkBqNWgniBbCjDpGsjshCMwxrAcPiX59SGi2G56J6v failed: custom program error: 0x177b