ethers.js: processing response error

This problem occurs when I try to send a transaction, but I don’t know why

 let tx={
        gasPrice:BigNumber.from('100000000000'),
        gasLimit: 60000,
        to:'0x98878a6c2e0f7eca7d858c2ad24d5d89f08dd047',
        nonce: 0,
        data: "0x",
        value:ethers.utils.parseEther('0.01'),
        chainId: 3
    };
    wallet.signTransaction(tx).then(res=>{
        console.log(res);
        provider.sendTransaction(res).then(result=>{
            console.log(result);
        }).catch(error=>{
            console.log(error)
        })
    })

The following problem occurred while I was executing

Error: processing response error (body={“0”:123,“1”:34,“2”:106,“3”:115,“4”:111,“5”:110,“6”:114,“7”:112,“8”:99,“9”:34,“10”:58,“11”:32,“12”:34,“13”:50,“14”:46,“15”:48,“16”:34,“17”:44,“18”:32,“19”:34,“20”:105,“21”:100,“22”:34,“23”:58,“24”:32,“25”:52,“26”:56,“27”:44,“28”:32,“29”:34,“30”:101,“31”:114,“32”:114,“33”:111,“34”:114,“35”:34,“36”:58,“37”:32,“38”:123,“39”:34,“40”:99,“41”:111,“42”:100,“43”:101,“44”:34,“45”:58,“46”:32,“47”:45,“48”:51,“49”:50,“50”:48,“51”:48,“52”:48,“53”:44,“54”:32,“55”:34,“56”:109,“57”:101,“58”:115,“59”:115,“60”:97,“61”:103,“62”:101,“63”:34,“64”:58,“65”:32,“66”:34,“67”:105,“68”:110,“69”:118,“70”:97,“71”:108,“72”:105,“73”:100,“74”:32,“75”:115,“76”:101,“77”:110,“78”:100,“79”:101,“80”:114,“81”:34,“82”:125,“83”:125}, error={“code”:-32000}, requestBody={“0”:123,“1”:34,“2”:109,“3”:101,“4”:116,“5”:104,“6”:111,“7”:100,“8”:34,“9”:58,“10”:34,“11”:101,“12”:116,“13”:104,“14”:95,“15”:115,“16”:101,“17”:110,“18”:100,“19”:82,“20”:97,“21”:119,“22”:84,“23”:114,“24”:97,“25”:110,“26”:115,“27”:97,“28”:99,“29”:116,“30”:105,“31”:111,“32”:110,“33”:34,“34”:44,“35”:34,“36”:112,“37”:97,“38”:114,“39”:97,“40”:109,“41”:115,“42”:34,“43”:58,“44”:91,“45”:34,“46”:48,“47”:120,“48”:102,“49”:56,“50”:54,“51”:98,“52”:56,“53”:48,“54”:56,“55”:53,“56”:49,“57”:55,“58”:52,“59”:56,“60”:55,“61”:54,“62”:101,“63”:56,“64”:48,“65”:48,“66”:56,“67”:50,“68”:101,“69”:97,“70”:54,“71”:48,“72”:57,“73”:52,“74”:57,“75”:56,“76”:56,“77”:55,“78”:56,“79”:97,“80”:54,“81”:99,“82”:50,“83”:101,“84”:48,“85”:102,“86”:55,“87”:101,“88”:99,“89”:97,“90”:55,“91”:100,“92”:56,“93”:53,“94”:56,“95”:99,“96”:50,“97”:97,“98”:100,“99”:50,“100”:52,“101”:100,“102”:53,“103”:100,“104”:56,“105”:57,“106”:102,“107”:48,“108”:56,“109”:100,“110”:100,“111”:48,“112”:52,“113”:55,“114”:56,“115”:55,“116”:49,“117”:49,“118”:99,“119”:51,“120”:55,“121”:57,“122”:51,“123”:55,“124”:101,“125”:48,“126”:56,“127”:48,“128”:48,“129”:48,“130”:56,“131”:48,“132”:50,“133”:57,“134”:97,“135”:48,“136”:50,“137”:55,“138”:98,“139”:51,“140”:57,“141”:53,“142”:99,“143”:99,“144”:100,“145”:102,“146”:102,“147”:102,“148”:50,“149”:53,“150”:57,“151”:50,“152”:99,“153”:57,“154”:102,“155”:100,“156”:55,“157”:48,“158”:49,“159”:100,“160”:48,“161”:55,“162”:53,“163”:100,“164”:48,“165”:51,“166”:51,“167”:51,“168”:55,“169”:57,“170”:53,“171”:51,“172”:102,“173”:102,“174”:54,“175”:98,“176”:102,“177”:50,“178”:51,“179”:97,“180”:57,“181”:101,“182”:100,“183”:97,“184”:99,“185”:51,“186”:49,“187”:53,“188”:97,“189”:49,“190”:56,“191”:56,“192”:100,“193”:48,“194”:98,“195”:48,“196”:51,“197”:50,“198”:48,“199”:57,“200”:97,“201”:48,“202”:53,“203”:102,“204”:56,“205”:51,“206”:101,“207”:55,“208”:54,“209”:98,“210”:55,“211”:102,“212”:55,“213”:50,“214”:56,“215”:48,“216”:49,“217”:48,“218”:55,“219”:56,“220”:51,“221”:56,“222”:57,“223”:53,“224”:53,“225”:97,“226”:55,“227”:98,“228”:97,“229”:55,“230”:101,“231”:54,“232”:54,“233”:54,“234”:54,“235”:53,“236”:52,“237”:55,“238”:100,“239”:56,“240”:49,“241”:102,“242”:101,“243”:52,“244”:49,“245”:52,“246”:101,“247”:51,“248”:51,“249”:57,“250”:100,“251”:101,“252”:97,“253”:54,“254”:54,“255”:50,“256”:50,“257”:52,“258”:54,“259”:50,“260”:50,“261”:57,“262”:51,“263”:53,“264”:100,“265”:100,“266”:34,“267”:93,“268”:44,“269”:34,“270”:105,“271”:100,“272”:34,“273”:58,“274”:52,“275”:56,“276”:44,“277”:34,“278”:106,“279”:115,“280”:111,“281”:110,“282”:114,“283”:112,“284”:99,“285”:34,“286”:58,“287”:34,“288”:50,“289”:46,“290”:48,“291”:34,“292”:125}, requestMethod=“POST”, url=“https://eth-mainnet.alchemyapi.io/v2/5h1xHvsnNA58znrs5AR-YzyYM77GCNxA”, code=SERVER_ERROR, version=web/5.0.4)