同时在1个函数中插入2个表时在运行时发生错误

//控制器

 public function create(Request $request)
    {
        // dd($request->all());
        $this->validate($request, [
             'emp_nm' => 'required',
             'emp_email' => 'required | email',
             'emp_password' => 'required' ,
             'mobile' => 'required | max:20' ,
             'emp_type_id' => 'required',
             'emp_img' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
         ]);
        $employee = new Employee();
        $employee->emp_nm = $request->input('emp_nm');
        $employee->emp_email = $request->input('emp_email');
        $employee->emp_password = Hash::make($request->input('emp_password'));
        $employee->mobile = $request->input('mobile');
        $employee->emp_type_id = $request->input('emp_type_id');
        if ($request->hasfile('emp_img')) {

            $file = $request->file('emp_img');
            $extention = $file->getClientOriginalExtension(); // get img extension
            $filename = time() . '.' . $extention;
            $file->move('upload/employee/',$filename);
            $employee->emp_img = $filename;

        }else{
            return $request;
            $employee->emp_img = '';
        }
        $employee->save();

         $id = $employee->id;
         $created_at = $employee->created_at;
         $updated_at = $employee->updated_at;
         $post =  Employee::find($id);
         //  $created = Employee::get('created_at');
         // $updated = Employee::get('updated_at');
        $employee = DB::table('employees')->get();

        $admin = new Admin();
        $admin->name = $request->input('emp_email');
        $admin->password =  $request->input('emp_password');
        $admin->employee_id =  $post;  
        // $admin->created_at =  $created;      
        // $admin->updated_at =  $updated;  
        $admin->save();
        return redirect()->back();


    }

//错误

SQLSTATE [22007]：无效的日期时间格式：1366不正确的整数值：'{“ id”：1，“ emp_nm”：“ admin”，“ emp_email”：“ [email protected]”，“ emp_password”：“ $ 2y $ 10 $ NLkdEn1ohHvHKU / uummrvOrwhJ3iEy7PPfxpk9dj9u6.pOVu1'列mycrm。admins。employee_id在第1行（SQL：INSERT INTO admins（name，password，employee_id，updated_at，created_at）值（[email protected]，管理@ 1234＃，{ “ID”：1， “emp_nm”：” admin“，” emp_email“：” [email protected]“，” emp_password“：” $ 2y $ 10 $ NLkdEn1ohHvHKU / uummrvOrwhJ3iEy7PPfxpk9dj9u6.pOVu10YTa“，” mobile“：9426399403，” emp_type_id“：”“：”“ 1581590201.jpg“，” created_at“：” 2020-02-13 10:36:41“，”Updated_at“：”“ 2020-02-13 10:36:41”}，2020-02-13 10：36：41，2020-02-13 10:36:41））

在控制器中，代码正在同时插入2个表，如果我分配了日期，则返回日期格式错误。.发现了意外的数据。尾随数据，所以我该如何解决此错误？