Fatal Error and Revit 2018 Error Report

[Anonymous]

Sir/Madam,

   When i was working with Grid levels in Structural floors. I was getting Fatal errors and Revit 2018 Error Report. Please tell me how to resolve the errors. 

[barthbradley]

Journal File may be helpful in troubleshooting. Post it.  

https://knowledge.autodesk.com/support/revit-products/getting-started/caas/CloudHelp/cloudhelp/2019/...