After line 154 of App\Services\Finance\PirepFinanceService.php,
Just add this code. I think it should work.
$aircraft_id = $pirep->aircraft->id;
$prev_pirep = Pirep::select('block_in_fuel')->where('aircraft_id', $aircraft_id)->first();
$fuel_used = $pirep->block_fuel - $prev_pirep->block_in_fuel;
In the public_html/admin/templates/pilots_list.php ,
Look for colModel
Within that just remove the the line containing the table name which you dont want to show.
Then just save. Hope it works..
was alredy set to null by default but anyway i have fixed that i was playing with my php version from php 5.2 to php 7.0 tried all and finally php 5.2 working without tha error