Array to String Conversion Error (shows up on production server)

Hey. I have a DB query which is fetching data and retrieving it as a collection when I "dd" it. The same is stored into a variable and this variable is passed to the view. On running a "foreach" on this variable, I'm trying to access the variable data using "->" in the view page.

When I'm running it on the localhost, there is no issue. But when I try to run the same on the server, "Array to String Conversion" occurs for some users while for others it doesn't.

• The error doesn't look like a coding error either since it is random in its nature. Once I clear the cache and cookies of the chrome of the person receiving the error, it disappears.

• Since removing cache all the time isn't a feasible solution, could someone explain why this error keeps popping up intermittently.

/* Code in the controller */

    $leaddata=DB::table('leads')
    ->select('services.*','personneldetails.*','addresses.*','leads.*')
    ->join('personneldetails', 'leads.id', '=', 'personneldetails.Leadid')
    ->join('addresses', 'leads.id', '=', 'addresses.leadid')
    ->join('services', 'leads.id', '=', 'services.LeadId')
    ->where('leads.id','=',$id)
    ->where('serviceType',$servicetypeinurl)
    ->orderBy('leads.id', 'DESC')
    ->get();

/* Blade code snippet */

@foreach ($leaddata as $lead)


        <div class="col-sm-12" style="margin-top: 7px;">
            <a href="{{'/Verticalhead/'.$lead->id.'/edit?servicetype='.$lead->ServiceType.'&requestedservice='.$lead->requested_service.'&url='.$url}}"  class="editt" style="float: right;"><img src="/img/edit.png" class="img-responsive" alt="oops! Not found"> </a>
        </div>

@endforeach 

Note - It doesn't look like a code error to me because on clearing the cache it vanishes. Any idea why this happens?