folder to locate the pop up $error message in this code - php

Question

I need to edit the error that shows if a user enters an amount below minimum but I can't find the file to edit the pop-up error response that shows if the amount I less than the withdrawal limit.
Here is the code.
<div class="row">
<div class="col-md-9">
<div class="card">
<div class="card-header">
<h4 class="card-title">withdrawal -
<small class="category">Cash Out Fund.</small>
</h4>
</div>
<div class="card-content">
<div class="row">
<div class="col-md-2">
<ul class="nav nav-pills nav-pills-icons nav-pills-primary nav-stacked" role="tablist">
<li class="active">
<a href="#withdraw" role="tab" data-toggle="tab">
<i class="material-icons">redeem</i>Withdraw
</a>
</li>
</ul>
</div>
<div class="col-md-10">
<div class="tab-content">
<div class="tab-pane active" id="withdraw">
<div class="alert alert-info">
<span class="text-center">Please Read before you proceed. You need to know processing fee:</span><br> #php $id=0;#endphp #foreach($gateways as $gateway) #php $id++;#endphp
<span>{{$id}}. <b>#if($gateway->name){{$gateway->name}}#endif #if($gateway->local_name){{$gateway->local_name}}#endif</b> we would charge you <b>{{config('app.currency_symbol')}} {{$gateway->fixed}}</b> fixed + <b>{{$gateway->percent}}%</b> to Withdraw.</span> #endforeach
</div>
<form action="{{route('userWithdraw.post')}}" method="post">
{{ csrf_field() }} #if(count($errors) > 0)
<div class="alert alert-danger alert-with-icon" data-notify="container">
<i class="material-icons" data-notify="icon">notifications</i>
<span data-notify="message">
#foreach($errors->all() as $error)
<li><strong> {{$error}} </strong></li>
#endforeach
</span>
</div>
<br> #endif
<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="form-group label-floating">
<select class="selectpicker" name="gateway" data-style="btn btn-warning btn-round" title="Select Withdraw Gateway" data-size="7">
#if($gate->status == 1)
<option value="1000">{{$gate->name}}</option>
#endif #foreach($gateways as $gateway)
<option value="{{$gateway->id}}">{{$gateway->name}}</option>
#endforeach
</select>
</div>
</div>
</div>
<br>
<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="form-group label-floating">
<label class="control-label" for="account">Your PayPal</label>
<input id="account" name="account" type="text" class="form-control">
</div>
</div>
</div>
<br>
<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="form-group label-floating">
<label class="control-label" for="amount">Withdraw Amount</label>
<input id="amount" name="amount" type="text" class="form-control">
</div>
</div>
</div>
I need to edit all error response that pops up in the file and any other error response on the entire website.