A transaction outside Shade’s curves

Program 6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P invoke [1]
Program log: Instruction: Sell
Program log: AnchorError thrown in programs/pump/src/lib.rs:972. Error Code: NotEnoughTokensToSell. Error Number: 6023. Error Message: Not enough tokens to sell.
Program log: Left: 0
Program log: Right: 1551425130359
Program 6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P consumed 26087 of 1400000 compute units
Program 6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P failed: custom program error: 0x1787