This can happen to a lack of memory on the PC.
Check with the solutions below:
1) Reset the computer and try running the game again
2) Shut down all other programs except PLAYERUNKNOWN'S BATTLEGROUNDS so that the computer doesn't use up any additional memory
3) Run the Steam client under administrator
4) Checking Integrity
Run Steam -> Library -> PLAYERUNKNOWN'S BATTLEGROUNDS - > right click -> select properties -> select the local files tab -> select game integrity check