Touchpad clicking bug - need help

Hey,

i am using an Aspire E5-571-382B.
After around 15 minutes of use the touchpad is getting buggy and every click is used 2 times (one time by tapping on the touchpad and a second time by taking off the finger).

Around 5-10 minutes later the system receives a 2 second blackscreen and results in the login screen. The previous user was logged out.


Is there any fix i did not find? There was only fixes for scrolling, nothing like my bug.
Thank you, i hope i posted this in the right part of the forum.