FiveM crash: GTA5_bXXXX.exe!_runReaderThreadTick

The FiveM error _runReaderThreadTick (also known as low-apart-failed, ink-dakota-mountain, nevada-orange-lemon, and others depending on build) occurs due to a disk read error.

Disk read errors such as these can be caused by a few reasons:

1. A recent system freeze/hang corrupting files on the system storage.
2. An external (or internal) HDD/SSD disconnecting.
3. A partial/incomplete game install. FiveM requires GTA V to be downloaded fully to run.

For most of these causes, verifying your GTA V game files (as described on Rockstar Games' guide - http://rsg.ms/verify) will help. If this still occurs despite verifying all GTA V installs on your PC, you may be experiencing hardware issues.