在我的laravel5.6项目中，我遇到了一个多对多关系的问题。我已经有了一些不同的多对多的关系，但我找不到这其中有什么错。我已经试过google和stackoverflow了，但是找不到答案。
所以，我有三张table；球员，球队和球员在球队中我想展示一个球员和他所属的所有球队。
这是我的（简单）表格布局：
团队-id-团队名称
玩家-id-名字-姓氏
球员积分-id-fkplayerid-fkteamid
我的代码：
播放器.php：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Player extends Model
{
protected $fillable = [
    'firstName', 'lastName'
];

public function teams() {
    return $this->belongsToMany('App\PlayersInTeam', 'players_in_teams', 'FKteamID', 'FKplayerID');
}
}

团队.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Team extends Model
{
protected $fillable = ['FKuserID', 'teamName', 'teamDescription', 'FKmediaID'];

public function players(){
    return $this->belongsToMany('App\PlayersInTeam', 'players_in_teams', 'FKteamID', 'FKplayerID');
}
}

播放器集成.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class PlayersInTeam extends Model
{
protected $fillable = ['FKteamID', 'FKplayerID'];
}

播放器控制器.php

public function index()
{
    $players = Player::all();
    return view('players.index', compact('players', $players));
}

showplayer.blade.php文件

<li>{{ $player->firstName.' '.$player->lastName }}</li>
<li>{{ $player->id }}</li>
@if($player->teams)
  <li>{{ $player->teams->id }}</li>
@endif

我收到的全部错误：
sqlstate[42000]：语法错误或访问冲突：1066 not unique table/alias:'players\u in\u teams'（sql:select） players_in_teams .*, players_in_teams . FKteamID 作为 pivot_FKteamID , players_in_teams . FKplayerID 作为 pivot_FKplayerID 从 players_in_teams 内部连接 players_in_teams 在 players_in_teams . id = players_in_teams . FKplayerID 哪里 players_in_teams . FKteamID =1）（视图：../resources/views/players/showplayer.blade.php）
如果希望有人看到我错过了什么，
提前谢谢！