# Why am I getting a fatal error crash? **URL:** \ **Category:** Modding\ **Tags:** fatal-error, unreal-engine, crash, Modding, question\ **Created:** [May 14, 2016, 3:14pm UTC](https://forums.unrealengine.com/t/why-am-i-getting-a-fatal-error-crash/357433 "2016-05-14T15:14:28Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![anonymous\_user\_f9439d87](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f9439d87](https://forums.unrealengine.com/u/anonymous_user_f9439d87)\ **Post date:** [May 14, 2016, 5:44pm UTC](https://forums.unrealengine.com/t/why-am-i-getting-a-fatal-error-crash/357433/2 "2016-05-14T17:44:05Z")
Looks like UnrealEngine is trying to destroy something that doesn’t exist or is null. The stack trace says it is coming from tick function in daycyclemanager.cpp line 62, and you will also be able to look at the unreal engine source code from there. I would check that function, your pointers, make sure you aren’t deleting anything twice, make sure you use UPROPERTY() for your class member references. > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from... --- _[View the full topic](https://forums.unrealengine.com/t/why-am-i-getting-a-fatal-error-crash/357433)._