Intervention image 405 method not found outside laravel - api

Question

I used the Intervention image in my api. Then, I am trying to access it from my web, which is also Laravel but in different project. (I separated the web from the api due to some testing purposes for the api). But the image was successfully resized and saved to my public folder. But in my api there's an error then, when I comment the Image::make(), the error is gone. Why is that?
EDIT: Code from my api where I used Image::make()
$plant_image = $_FILES['image']['tmp_name'];
move_uploaded_file($plant_image, public_path()."\gallery\images\\".$_FILES['image']['name']);
$file_path = public_path() . "\gallery\images\\" . $_FILES['image']['name'];
$img = Image::make($file_path)->resize(216, 145);
$img->save();
Here is the code for the web
$(document).ready(function() {
$("form#addplant").submit(function() {
var form_data = new FormData($("#addplant")[0]);
$.ajax({
url: 'http://127.0.0.1/identificare_api/public/api/plants',
data: form_data,
type: "POST",
processData : false,
contentType: false,
success: function( json ) {
//console.log(json);
if (json.indexOf("error") > -1) {
var jsonparse = JSON.parse(json);
if(jsonparse.hasOwnProperty('error')){
location.reload(true);
alert("Code: " + jsonparse.error.code + "\n" + "Message: " + jsonparse.error.message);
}else{
location.reload(true);
alert("Please fill in empty fields");
}
}else{
window.location.href = "/home/"+ user_token;
alert("This item is currently under review! Please wait for admin's confirmation. Thank you!");
}
},
error: function(){
alert("Something's wrong with your api. Come on fix it!");
}
});
});
});