My phone is showing errors over and over

Recently, my phone has started to keep giving me notifications that I don't need, repeatedly showing the same thing over and over, for example, "unfortunately, sense home has stopped" or "unfortunately, exchange services has stopped". Is there any solution to this!?
 
You could get it looked at in a phone shop which would cost you money
Back your data up and reset it that’s what I would do as it won’t cost you any money if it works
 
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