Game showing that i can revert to launch while in the VAB after my vehicle save had dissappeared

[Pasanaator]

I was playing the game as normal and i crashed my plane, following the crash i wanted to go into the VAB and improve my design. I improved it, but the game didn't allow to launch it using the launch button which also red out that i had 0 delta-V. I went to the KSC to select the runway and launch it from there but the vehicle i had saved using the save button in the VAB didn't show up. I returned to the VAB and found that the "Revert to VAB", "Recover vehicle", and the "Revert to launch" buttons were there,  I clicked "Revert to launch" and the game froze with the screen as seen on the screenshot below.