Internal Storage shows 4GB instead of 8GB

[Lonely_Boz]

Hello,

I hope, that someone is reading this.
First I had rooted my device flashed (restored) the custom ROM of denny.hell. It worked. A long time I didn't use the phone.
But today I wanted to use it and then I see the internal storage shows 4GB instead of 8GB when I'm going to TWRP.
But when I restart and go to settings, then storage, it shows 8 GB, but the storage is occupied with around 4GB with "others".

Can someone help me?

 

[Ataru Moroboshi]

4GB is for internal space and 2,4GB for the system partition. The other 1,6GB i don't know for what is that used.