Syntax error or access Violation: 1066 Not Unique table/alias with polymorphic relationship in Laravel

Question

I’ve been racking my brain for weeks and I can’t solve this problem.

I’m using this package https://github.com/rappasoft/laravel-livewire-tables to use Datables in Laravel with Livewire.
I have models with the following relationships:

User.php

public function getAdminAttribute()
    {
        return $this->admins->first();
    }

    public function admins()
    {
        return $this->morphedByMany(Admin::class, 'userable');
    }

    public function getCoachAttribute() //permite pegar o $user->coach direto (encapsulamento)
    {
        return $this->coaches->first();
    }

    public function coaches()
    {
        return $this->morphedByMany(Coach::class, 'userable');
    }

    public function getAthleteAttribute()
    {
        return $this->athletes->first();
    }

    public function athletes()
    {
        return $this->morphedByMany(Athlete::class, 'userable');
    }

Athlete.php

public function coach()
    {
        return $this->belongsTo(Coach::class);
    }

    public function getUserAttribute()
    {
        return $this->users->first();
    }

    public function users()
    {
        return $this->morphToMany(User::class, 'userable');
    }

Coach.php

public function athletes()
    {
        return $this->hasMany(Athlete::class);
    }

    public function getUserAttribute()
    {
        return $this->users->first();
    }

    public function users()
    {
        return $this->morphToMany(User::class, 'userable');
    }

And the pivot table:

public function up()
    {
        Schema::create('userables', function (Blueprint $table) {
            $table->integer('user_id');
            $table->morphs('userable'); //nullableMorphs
        });
    }

In the package’s Livewire Component table:

public function query() : Builder
    {
        return Athlete::with(['coach.users:id,name', 'users:id,name'])->where('company_id', $this->companyId);
    }

    public function columns() : array
    {
        return [
            Column::make('Avatar', 'avatar')
                ->format(function(Athlete $model) {
                    return $this->html('<img class="rounded-circle m-0 avatar-sm-table" src="'. asset("images/users/{$model->user->id}/{$model->user->avatar}") .'" alt="avatar">');
                })
                ->excludeFromExport(),
            Column::make('Nome', 'users.name')
                ->searchable()
                ->sortable(/* aqui é o problema */)
                ->format(function(Athlete $model) {
                    return $this->html($model->user->name);
                }),
            Column::make('Treinador', 'coach.users.name')
                ->searchable()
                //->sortable()
                ->format(function(Athlete $model) {
                    return $this->html($model->coach->user->name);
                }),
                Column::make('Ações', 'actions')
                ->format(function(Athlete $model) {
                    return $this->html(
                        '<a href="'. route('athletes.profile', ['uuid' => $model->uuid]) .'" class="btn btn-outline-info btn-icon m-0 m-0" data-toggle="tooltip" data-trigger="hover" data-original-title="Ver atleta" title="Ver atleta" target="_blank">
                            <i class="nav-icon fas fa-eye font-weight-bold"></i>
                        </a>
                        <a href="#" wire:click.prevent="showConfirmation('. $model->uuid .')" class="btn btn-outline-danger btn-icon m-0 m-0 alert-confirm" data-toggle="tooltip" data-trigger="hover" data-original-title="Desvincular atleta da empresa" title="Desvincular atleta da empresa">
                            <i class="nav-icon fas fa-user-times font-weight-bold"></i>
                        </a>'
                    );
                })
                ->excludeFromExport(),
        ];
    }

The error returned is this:

Illuminate\Database\QueryException
SQLSTATE[42000]: Syntax error or access violation: 1066 Not unique table/alias: 'users' (SQL: select count(*) as aggregate from `athletes` left join `userables` on `userables`.`userable_id` = `athletes`.`id` left join `users` on `userables`.`user_id` = `users`.`id` left join `users` on `userables`.`user_id` = `users`.`id` where `company_id` = 1)

There should be a way to create a Alias?, but it turns out that the package does this automatically (these joins) and I didn’t understand how to get around. I’ve tried lots of things and not for sure,

Even in the passage commented there aqui é o problema, in git of the package, they tell you when you need to work around something different in sortable(), to do it inside using Builder. In case I tried to do that:

Column::make('Nome', 'users.name')
                ->searchable()
                ->sortable(function ($builder, $direction) {
                    return $builder->join('userables', 'athletes.id', '=', 'userables.userable_id')
                                ->join('users', 'users.id', '=', 'userables.user_id')
                                ->where('userables.userable_type', '=', Athlete::class)
                                ->orderBy('users.name', $direction);
                } )
                ->format(function(Athlete $model) {
                    return $this->html($model->user->name);
                })

So no error happens, but does not order correctly by names.

Can someone help me with that?