Hello there @HoHo_Gaming!
I'm sorry to hear you've been encountering DELTA03 errors, accompanied by freezing and crashing. Thank you for taking the time to share your report with us.
DELTA03 errors mean that your connection to the server has been lost. I would recommend trying these basic PC connectivity troubleshooting steps to ensure that your connection to the servers is in optimal condition.
Additionally, I would recommend trying these basic PC troubleshooting steps. These steps help to tackle a number of common causes behind technical issues, such as crashes and freezing in-game.
If you are still encountering these error codes after trying all of the suggested troubleshooting, please don't hesitate to reach out so we can continue to take a closer look.