I dont know why this error appears. I used sendRunes function to make a psbt.

[ambitious922]

Psbt {        
  data: Psbt {
    inputs: [ 
      {
        unknownKeyVals: [],
        witnessUtxo: {
          value: 546,
          script: Buffer(34) [Uint8Array] [
             81,  32,  85, 177, 244, 183, 228,  76,
            104,  37,  96,  90,  27, 232,  21, 154,
            180, 226, 224,  64, 146,  70,  22, 229,
             84, 175, 111,  88, 212,  96,  82, 132,
            109, 124
          ]
        },
        tapInternalKey: Buffer(32) [Uint8Array] [
           72, 128, 153, 181, 179, 122, 121,  97,
           15, 220,  73, 109,  77, 124,  94,  75,
          121,  47, 129, 183, 229, 165, 123, 228,
          210,   0, 240, 170,  27, 208, 172, 170
        ]
      },
      {
        unknownKeyVals: [],
        witnessUtxo: {
          value: 546,
          script: Buffer(34) [Uint8Array] [
             81,  32,  85, 177, 244, 183, 228,  76,
            104,  37,  96,  90,  27, 232,  21, 154,
            180, 226, 224,  64, 146,  70,  22, 229,
             84, 175, 111,  88, 212,  96,  82, 132,
            109, 124
          ]
        },
        tapInternalKey: Buffer(32) [Uint8Array] [
           72, 128, 153, 181, 179, 122, 121,  97,
           15, 220,  73, 109,  77, 124,  94,  75,
          121,  47, 129, 183, 229, 165, 123, 228,
          210,   0, 240, 170,  27, 208, 172, 170
        ]
      },
      {
        unknownKeyVals: [],
        witnessUtxo: {
          value: 546,
          script: Buffer(34) [Uint8Array] [
             81,  32,  85, 177, 244, 183, 228,  76,
            104,  37,  96,  90,  27, 232,  21, 154,
            180, 226, 224,  64, 146,  70,  22, 229,
             84, 175, 111,  88, 212,  96,  82, 132,
            109, 124
          ]
        },
        tapInternalKey: Buffer(32) [Uint8Array] [
           72, 128, 153, 181, 179, 122, 121,  97,
           15, 220,  73, 109,  77, 124,  94,  75,
          121,  47, 129, 183, 229, 165, 123, 228,
          210,   0, 240, 170,  27, 208, 172, 170
        ]
      },
      {
        unknownKeyVals: [],
        witnessUtxo: {
          value: 99260,
          script: Buffer(34) [Uint8Array] [
             81,  32,  85, 177, 244, 183, 228,  76,
            104,  37,  96,  90,  27, 232,  21, 154,
            180, 226, 224,  64, 146,  70,  22, 229,
             84, 175, 111,  88, 212,  96,  82, 132,
            109, 124
          ]
        },
        tapInternalKey: Buffer(32) [Uint8Array] [
           72, 128, 153, 181, 179, 122, 121,  97,
           15, 220,  73, 109,  77, 124,  94,  75,
          121,  47, 129, 183, 229, 165, 123, 228,
          210,   0, 240, 170,  27, 208, 172, 170
        ]
      }
    ],
    outputs: [ { unknownKeyVals: [] }, { unknownKeyVals: [] } ],
    globalMap: { unsignedTx: PsbtTransaction {} }
  }
}