Can't get into the game

Since today I am not able anymore to get into the game (PC version, not steam). It starts up and within a few seconds the opening screen disappears and than…nothing. Very curious since I didn’t touch anything since yesterday, when I had a flawless flight on MSFS. Who can help?

Moved to Community Support-Tech support for community assistance. Also added tag “PC”.

I resolved the problem by removing the beta-program. It started with beta 1.30.5.