Cannot convert value '0000-00-00 00:00:00' from column 4 to TIMESTAMP

[Taco Fleur]

 
The second major problem I am running into after the upgrade is the
following error, which did not occur on Development. 

Error Executing Database Query. Cannot convert value '0000-00-00 00:00:00'
from column 4 to TIMESTAMP. 
The error occurred on line 8. 

MySQL version is: 5.0.27

Thanks in advance for any help.