
If any files are found different, they may be changed or repaired. So you can verify the integrity of the game files (of the problematic game) to compare the files on your PC to the ones on Steam servers. You may run into this error if the files of the game you’re playing are faulty or corrupt. If yes, then great! If the error still pops up, move on to Fix 2, below.

Open the faulty game to see if it works properly.Fire up Steam Client and sign in to your account.In the upper left corner of your screen, click Steam > Change Account….You can try logging out and back in to see if it returns to normal. The Steam Fatal Error may just be a hiccup of Steam Client.


How to fix Steam Fatal Error: Failed to Connect with Local Steam Client Process
