Ue4 crashing when launched (unrealed.dll)

Hello.
Im new to UE and everything worked fine last few days. But today UE4 suddenly crashed with no reason and i get a weird error everytime i try to start it up now.

since not everyone is speaking german ill translate error:

UE4Editor.exe - Entry Point not found

Procedure entry point
gibberishgibberishgiberrish
was not found in DLL File
GIBBERISHGIBBERISHGIBBERISH

I have no idea what this means and how I can solve it.
Any ideas?

Hi GreatOnibaku,

If you open UE4Editor.exe directly, rather than opening it through Launcher, does same error occur? By default, this will be installed in C:\Program Files\Epic Games\4.9\Engine\Binaries\Win64\

Hey ! Thanks for your Reply. When executing UE4Editor.exe file directly, Unreal Engine Crash Reportet Pops up immediatly.and gives me a line with MachineId and one with EpicAccountId in Report. I dont really want to reinstall everything. What can I do?

Please copy information from Crash Reporter window, including Machine ID, and paste it here for us. Thanks!

Sorry for late reply.

Here are Informations you requested.

MachineId:2E36632749E63AAA058130A1E2FC78B7
EpicAccountId:f0a70d15ebcb413e84bd9cb92c7cba39

You do not have any debugging symbols required to display callstack for this crash.

Hi GreatOnibaku,

Try suggestions in this section of troubleshooting guide.

If nothing works, make sure to follow steps here and then post your Debug Logs, along with your Dxdiag (system specs).

Hi GreatOnibaku,

We haven’t heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you’re still experiencing this issue, please try suggestion that TJ mentioned above then post back here with requested info.

If you need anything else, feel free to ask.