Retrofit error: JSON document not fully consumed

Question

Please I'm stock using retrofit for few days, I'm trying to parse the response to my POJO class, initially the error was setlenient to true wich i did and ended up here, no related questions here seem to solving my problem

JSON Response from server

{
"error": false,
"message": "Login successful",
"student": {
    "fullname": "Idris Muhammad",
    "matric": "u14/fns/csc/066",
    "department": "computer science",
    "gender": "male",
    "email": "[e-mail]",
    "phone": "08065468035",
    "level": 100,
    "faculty": "Applied Science and Technology"}
}

POJO Class public class LoginResponse {

@SerializedName("error")
private boolean error;
@SerializedName("message")
private String message;
@SerializedName("student")
private Student student;


public LoginResponse(boolean error, String message, Student student) {
    this.error = error;
    this.message = message;
    this.student = student;
}

public boolean isError() {
    return error;
}

public String getMessage() {
    return message;
}

public Student getStudent() {
    return student;
}

}

Restrift Interface

   @FormUrlEncoded
@POST("login")
Call<LoginResponse> studentLogin(
        @Field("matric") String matric,
        @Field("password") String password
);

My OnclickListener

     btnLogin.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {



            Call<LoginResponse> call = RetroClient.getInstance().getAPI().studentLogin(id.getText().toString(),password.getText().toString() );
            call.enqueue(new Callback<LoginResponse>() {
                @Override
                public void onResponse(Call<LoginResponse> call, Response<LoginResponse> response) {
                    LoginResponse loginResponse = response.body();
                    if (loginResponse.isError()){
                        Toast.makeText(getBaseContext(), "Error", Toast.LENGTH_LONG).show();
                        return;
                    }else {

                        String matnum []= id.getText().toString().split("/");

                        SharedPrefManager sharedPrefManager = SharedPrefManager.getInstance(getBaseContext());

                        sharedPrefManager.storeUserType(SharedPrefManager.USER_TYPE_STUDENT);
                        sharedPrefManager.storeDepartment(matnum[2]);
                        sharedPrefManager.storeFaculty(matnum[1]);
                        sharedPrefManager.storeLevel(loginResponse.getStudent().getLevel());
                        sharedPrefManager.storeActivation(true);
                        sharedPrefManager.storeUserType(SharedPrefManager.USER_TYPE_STUDENT);

                        Intent intent = new Intent(getBaseContext(), MainActivity.class);
                        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                        startActivity(intent);

                    }
                }

                @Override
                public void onFailure(Call<LoginResponse> call, Throwable t) {
                    Toast.makeText(getBaseContext(), "Error "+t.getMessage(), Toast.LENGTH_LONG).show();

                }
            });


        }
    });

This is my Student class

public class Student {
@SerializedName("fullname")
private String fullname;

@SerializedName("matric")
private String matric;

@SerializedName("department")
private String department;

@SerializedName("gender")
private String gender;

@SerializedName("email")
private String email;

@SerializedName("phone")
private String phone;

@SerializedName("level")
private String level;

@SerializedName("faculty")
private String faculty;

public Student(String fullname, String matric, String department, String gender, String email, String phone, String level, String faculty) {
    this.fullname = fullname;
    this.matric = matric;
    this.department = department;
    this.gender = gender;
    this.email = email;
    this.phone = phone;
    this.level = level;
    this.faculty = faculty;
}

public String getFullname() {
    return fullname;
}

public String getMatric() {
    return matric;
}

public String getDepartment() {
    return department;
}

public String getGender() {
    return gender;
}

public String getEmail() {
    return email;
}

public String getPhone() {
    return phone;
}

public String getLevel() {
    return level;
}

public String getFaculty() {
    return faculty;
}

}

my logcat

2018-11-29 14:12:59.244 4775-4775/com.ietech.ibbumobile E/RETROFIT: JSON document was not fully consumed.