All of the following criteria must be met

• All Requirements must be installed.
• Full Latest.log file included. If no file exists then leave this unchecked and state so.

All of the following are optional to answer

• Tried reinstalling the Game.
• Tried reinstalling MelonLoader.
• Tried restarting PC.
• Was able to see the Start Screen.

Describe the issue.

Every time I start a game there is a prompt that looks like this appears:

Maybe an offline version that allows users to manually download could help
Latest.log

Did you attach your log file?

• Yes, I attached my log file to the text box above.
• No, I could not find a log file at {Game_Directory}\MelonLoader\Latest.log

Try installing the x64 release build from https://nightly.link/LavaGang/MelonLoader/workflows/build/alpha-development
You can do so by using the Manual Zip tab on the installer.
See if the same issue occurs.

Well, I tried, now the game won't even open :( the command prompt windows flashes and then automatically shuts down itself

Well, I tried, now the game won't even open :( the command prompt windows flashes and then automatically shuts down itself

Apparently there was a crash issue with the Alpha branch of MelonLoader.
The crash issue should now be resolved.
Please download this MelonLoader.x64.CI.Release.zip and try again.

Well, seems like using manual zip install still leads to this situation:

Problem solved, by looking at what the console shows, I manually fill in the missing files and the game now boots normally, thanks XD