Previous exceptions Invalid argument supplied for foreach() (0)

I have this problem in my webpage, any can help me please. I only have this error when i add cities in my web.

addLoop($__currentLoopData); foreach($__currentLoopData as $key => $zone): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?> currentPage() - 1)*$zones->perPage()); ?> name); ?>

                    </td>
                    <td>
                        <?php $__currentLoopData = json_decode($zone->cities); $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $city_id): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?>
                            <span class="badge badge-inline badge-md bg-soft-dark mb-1"><?php echo e(App\Models\City::find($city_id)->name); ?></span>
                        <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?>
                    </td>
                    <td>
                        <?php echo e(format_price($zone->standard_delivery_cost)); ?>

                    </td>
                    <td>
                        <?php echo e(format_price($zone->express_delivery_cost)); ?>

source https://stackoverflow.com/questions/70868277/previous-exceptions-invalid-argument-supplied-for-foreach-0