Oh no! You may find this question and answers helpful: Prevent/Fix Touchscreen dead zones as it seems similar to your issue. I am getting the impression that the right-hand side of the screen is more prone to failure than other parts, as this is a common theme.
I have occasionally experienced this. In my phone, the cause of the problem was a dirty proximity sensor (located under the top left of the screen). When the sensor gets dirty, the phone has trouble telling when you move the earpiece away from your ear at the end of a call. There is a diagnostic for the proximity sensor in the settings section. If you give it a good clean in the top left corner, then run the diagnostic to recalibrate it, you should find it fixes the problem.
I have sometimes experienced this problem. Sometimes, pressing the power button briefly to put the screen to sleep, waiting a moment, then re-awakening the screen, will have the effect of activating the touch screen. Sometimes, if it doesn’t work first time, it will work on the second attempt. After that, the only option is to remove the battery, replace, and restart. Ich habe dieses Problem manchmal erlebt. Manchmal wird der Touchscreen durch kurzes Drücken der Ein- / Aus-Taste aktiviert, um den Bildschirm in den Ruhezustand zu versetzen. Warten Sie einen Moment, und aktivieren Sie ihn dann erneut. Wenn es beim ersten Mal nicht funktioniert, funktioniert es manchmal beim zweiten Versuch. Danach besteht die einzige Möglichkeit darin, den Akku zu entfernen, zu ersetzen und neu zu starten.
Reputation over time
It looks like this user hasn't gained any reputation yet.
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like: