Inventory Error

[Bexasaurus]

Great. I encountered another error for leveling up a pet.
I went to click on my pet and it gave me: Database error 1054 - Unknown column 'totalclicks' in 'field list'

Still need to fix inventory error.

Checked out my error log:
[25-Nov-2016 20:29:51 UTC] PHP Fatal error: Uncaught exception 'ItemException' with message 'The item specified is invalid...' in /home/asaremys/public_html/classes/class_item.php:28
Stack trace:
#0 /home/asaremys/public_html/classes/class_privateitem.php(25): Item->__construct('changer')
#1 /home/asaremys/public_html/classes/class_inventory.php(45): PrivateItem->__construct('3')
#2 /home/asaremys/public_html/view/inventoryview.php(20): Inventory->getitem('3')
#3 /home/asaremys/public_html/classes/class_frontcontroller.php(100): InventoryView->index()
#4 /home/asaremys/public_html/index.php(74): FrontController->render()
#5 /home/asaremys/public_html/index.php(78): IndexController::main()
#6 {main}
thrown in /home/asaremys/public_html/classes/class_item.php on line 28