SOLUTION TO THE PROBLEM WITH DISAPPEARING STORY MISSIONS IN GTA 5

If you have encountered the same problem as me (the disappearance of story missions and the ability to launch them), then I will help you. the disappearance of the mission occurred for me after the Legal Trouble mission.
Your actions to fix the error:

Right-click on GTA V in your Library.

Go to Properties > Installed Files > Verify integrity of game files.

After checking all the files, Michael will soon receive a message with the continuation of the story missions