OK! I see the problem now:
There are two consecutive spaces in the path of your sketchbook folder, from the user name component: "Umut Can".
There was a bug in Arduino IDE 1.8.13 that caused libraries to no longer be recognized by the Arduino IDE when they were installed under a path that contains two or more consecutive spaces.
This bug has already been fixed, but there hasn't been a new release of the Arduino IDE since then.
So you have your choice of either of two options to fix this problem. Either one of them will fix it; there's no need to do both:
Option A: Change your sketchbook folder to a path that doesn't contain two consecutive spaces. You can set the sketchbook folder location in the Arduino IDE's File > Preferences > Sketchbook Location. After changing the sketchbook location, you will either need to copy the files and folders from the old location (C:\Users\Umut Can\Documents\Arduino) to the new location, or else to reinstall the libraries.
Option B: Use the hourly build of the Arduino IDE. You can download it here:
https://www.arduino.cc/en/software#hourly-builds
Please let me know if you have any problems or questions.