[Laravel]モーダルウィンドウのエラー地獄

Ge {message: 'Request failed with status code 404', name: 'AxiosError', code: 'ERR_BAD_REQUEST', config: {…}, request: XMLHttpRequest, …}
code
: 
"ERR_BAD_REQUEST"
config
: 
{transitional: {…}, adapter: Array(2), transformRequest: Array(1), transformResponse: Array(1), timeout: 0, …}
message
: 
"Request failed with status code 404"
name
: 
"AxiosError"
request
: 
XMLHttpRequest {onreadystatechange: null, readyState: 4, timeout: 0, withCredentials: false, upload: XMLHttpRequestUpload, …}
response
: 
{data: {…}, status: 404, statusText: 'Not Found', headers: jl, config: {…}, …}
stack
: 
"AxiosError: Request failed with status code 404\n    at bO (http://localhost:8000/build/assets/app-5f89283c.js:29:1045)\n    at XMLHttpRequest.S (http://localhost:8000/build/assets/app-5f89283c.js:29:4235)"
[[Prototype]]
: 
Error

Route::middleware('auth:sanctum')
->get('/searchCustomers', function (Request $request) {
    return Customer::SearchCustomers($request->search)->select('id','name','kana','tel')->paginate(50);
});