big error import

Hey Laravelers:

this is my code and I don't know how to fix it:

I try to create a table in the database when I import it I'm using laravel-excel

this is import-model:

<?php

namespace App\Imports;

use App\People;
use Maatwebsite\Excel\Row;
use Maatwebsite\Excel\Concerns\OnEachRow;
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;


class PeopleIMport implements OnEachRow
{

        public function onRow(Row $row)
        {
            People::firstOrCreate($row->toArray());
        }
        public function createTable($table_name, $fields = [])
        {
            if (!Schema::hasTable($table_name)) {
                Schema::create($table_name, function (Blueprint $table) use ($fields, $table_name) {
                    $table->increments('id');
                    if (count($fields) > 0) {
                        foreach ($fields as $field) {
                            $table->{$field['type']}($field['name']);
                        }
                    }
                    $table->timestamps();
                });
            }
        }

}

this is the controller:

<?php

namespace App\Http\Controllers;

use App\People;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use App\Exports\PeopleExport;
use App\Imports\PeopleImport;
use Maatwebsite\Excel\Facades\Excel;

class PeopleController extends Controller
{

    public function index()
    {
        $people = People::all();

        return view('people')->with('people', $people);
    }


    public function import(Request $request)
    {
        if ($request->file('imported_file')) {
            Excel::import(new PeopleImport(), request()->file('imported_file'));
            return back();
        }
    }

    public function export()
    {
        return Excel::download(new PeopleExport(), 'people.xlsx');
    }

}

this is the error:

Illuminate\Database\QueryException
SQLSTATE[42S22]: Column not found: 1054 Unknown column '0' in 'where clause' (SQL: select * from `people` where (`0` = semester and `1` = Industry and `2` = Data Base Name and `3` = Data Source and `4` = Data Base Description and `5` = Database Url and `6` = Data Dictionary Yes or No or Something? and `7` = Number of Rows and `8` = Number of Continous Variables and `9` = Number of Categorical Variables and `10` = Report (1) or Raw Data? (10) 1-10 scale and `11` = Comments) limit 1)
http://localhost:8000/people/import
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what I'm trying to do importing randomly excel sheet