Dispalying an error when saving fails

#1

I would,like to display an error if saving fails

I have currently this

public function submit()

    {

        $validatedData = $this->validate();

        DB::beginTransaction();

        try

        {

            $this->globalSettings->update(['wordcount' => $validatedData['read_per_minute'] ]);

            DB::commit();

            Session::flash('success', 'Your settings have been saved Successfully');

        } catch (exception $e) {

            DB::rollback();

            Session::flash('fail', 'An error occured');

        }

    }

To trigger my error, I changed the database field name before saving and set the APP_DEBUGto false in .env.
When APP_DEBUG is set to true, I get the mysql error in a popup
When APP_DEBUG is set to false, I get an error 500 popup

Is there a way to avoid these popups, get the error caught by the try/catch, and display the relevant message?