Sharp 1810c SMS problem

The system may be unstable~~ I am like this too. It keeps showing two text messages, but when I open my inbox there is nothing.

This situation will disappear after a while. However, other problems may occur due to system instability (such as a certain button suddenly not working in a certain application, and then working fine again). This is what happened to me

I went to the maintenance place and they checked After it was over, he told me that it was no problem... Anyway, it doesn't seriously affect the use, so just ignore it and it will be fine in two days~~