I think my S5 is hacked

[AC Question]

Last night when talking on the phone at the end of the conversation I had a lot of echoing. Then this morning when I woke up the time and date was off on my clock and I couldn't open apps because it says I'm not connected to the Internet although it shows I'm connected to Wi-Fi and mobile data. Facebook posts say everything was posted just now. There is also no option to update the clock. What can I do to fix this this? Thank you!

 

[Golfdriver97]

Welcome to the forums. Have you installed any new apps recently?