no Shovel is present in my world

Put the summary of the bug you're having here

All of a sudden my world has no shovels and I cannot even craft one in the crafting table 

What I expected to happen was...:
Describe what you thought should happen here

shovels to exist

What actually happened was...:
Describe what happened here

shovels disappeared

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...