vuejs retorna objeto student null ao tentar buscar estudante por id

Galera.
Eu estou com um problema agora.
Consegui resolver o erro 400, mas agora eu não estou conseguindo retornar os dados do estudante pelo id dele.
Segue meu código abaixo:

    data() {
        return {
            student: {
                name: "",
                lastname: "",
                telephone: ""
            }
        }
    },
    methods: {
        async updateStudent() {
            const url = http://localhost:5000/students/student
            await axios.put(url, {
                name: this.student.name,
                lastname: this.student.lastname,
                telephone: this.student.telephone
            })
            .then((response) => {
                console.log(response)
                this.student = response.data
            })
            .catch((error) => {
                console.log("Erro!! " + error)     
            })
        },
        clean() {
            this.student.name = ""
            this.student.lastname = ""
            this.student.telephone = ""
        },
        created() {
            this.updateStudent()
            this.clean()
        }
    }
}

erros:

[Vue warn]: Error in v-on handler: "TypeError: Cannot read property 'student' of null"

found in

---> <FormSearchStudent>
       <SearchStudent> at src/pages/Students/SearchStudent.vue
         <App> at src/App.vue
           <Root>
warn @ vue.runtime.esm.js?2b0e:619
logError @ vue.runtime.esm.js?2b0e:1884
globalHandleError @ vue.runtime.esm.js?2b0e:1879
handleError @ vue.runtime.esm.js?2b0e:1839
invokeWithErrorHandling @ vue.runtime.esm.js?2b0e:1862
invoker @ vue.runtime.esm.js?2b0e:2179
original._wrapper @ vue.runtime.esm.js?2b0e:6917

TypeError: Cannot read property 'student' of null
    at submit (eval at ./node_modules/cache-loader/dist/cjs.js?{"cacheDirectory":"node_modules/.cache/vue-loader","cacheIdentifier":"574491ba-vue-loader-template"}!./node_modules/vue-loader/lib/loaders/templateLoader.js?!./node_modules/cache-loader/dist/cjs.js?!./node_modules/vue-loader/lib/index.js?!./src/components/Students/FormSearchStudent.vue?vue&type=template&id=6e70ea68& (app.js:1502), <anonymous>:15:43)
    at invokeWithErrorHandling (vue.runtime.esm.js?2b0e:1854)
    at HTMLFormElement.invoker (vue.runtime.esm.js?2b0e:2179)
    at HTMLFormElement.original._wrapper (vue.runtime.esm.js?2b0e:6917)
logError @ vue.runtime.esm.js?2b0e:1888
globalHandleError @ vue.runtime.esm.js?2b0e:1879
handleError @ vue.runtime.esm.js?2b0e:1839
invokeWithErrorHandling @ vue.runtime.esm.js?2b0e:1862
invoker @ vue.runtime.esm.js?2b0e:2179
original._wrapper @ vue.runtime.esm.js?2b0e:6917

methods: {
    async updateStudent() {
        try {
          const url = http://localhost:5000/students/student
          const { data } = await axios.put(url, {
            name: this.student.name,
            lastname: this.student.lastname,
            telephone: this.student.telephone
          })
          this.student = data
        } catch (error) {
          console.log(error)
        }
        
    },
    clean() {
        this.student.name = ""
        this.student.lastname = ""
        this.student.telephone = ""
    },
    created() {
        this.updateStudent()
        this.clean()
    }
}

async updateStudent() {
            let self = this;
            const url = http://localhost:5000/students/student
            await axios.put(url, {
                name: this.student.name,
                lastname: this.student.lastname,
                telephone: this.student.telephone
            })
            .then((response) => {
                console.log(response)
                self.student = response.data
            })
            .catch((error) => {
                console.log("Erro!! " + error)     
            })
        };

.catch((error) => {
    console.log("Erro!! " + error)
    this.student: {
            name: "",
            lastname: "",
            telephone: ""
        }
    })