Fatal signal 11 (SIGSEGV), code 1, fault addr 0x14 in tid 27896 (JDWP), pid 27888

I try to developing application with android studio. but the app showing error while debugging and always force stop

A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x14 in tid 27896 (JDWP), pid 27888 (e.loginretrofit)

What error is this? is something wrong my android studio? Error start from here

private void ProcessNow() {
        final ProgressDialog dialog = new ProgressDialog(this);
        dialog.setMessage("Please wait.....");
        dialog.show();

        Call<Book> call = apiInterface.getbooklist(id_book.toString(), startdate.getText().toString(),  enddate.getText().toString()); //this function always return error fatal signal 11 maybe becuase from spinner
        call.enqueue(new Callback<Book>() {

            @Override
            public void onResponse(Call<Book> call, Response<Book> response) {
                String result = response.body().getStatus();
                if(result.equals("true"))
                {
                    Toast.makeText(activity_book.this, "Load data successfully", Toast.LENGTH_SHORT).show();
                    dialog.dismiss();
                    Intent intent = new Intent(activity_book.this, listbook.class);
                    startActivity(intent);

                }
                else  if(result.equals("false"))
                {
                    Toast.makeText(activity_book.this, "Load Data Failed", Toast.LENGTH_SHORT).show();
                    dialog.dismiss();
                }
            }



            @Override
            public void onFailure(Call<Book> call, Throwable t) {
                Toast.makeText(activity_book.this, "Something went wrong, Please Try Again !",Toast.LENGTH_SHORT).show();
                dialog.dismiss();
            }
        });

    }

here is the output of program. Actually i want to showing list view base on id book, start date and end date but it return fatal signal error