Goodstore Child theme error

Hello,

I am getting three errors on my Childstore Theme, I believe it is missing updates on separate php features, even though I have already updated the whole theme.

Error can be seen here:
https://drive.google.com/drive/folders/0B0wyFSo4Xln9RTFtNmxMR3hIR0k?usp=sharing

What can I do about this? Any help would be appreciated.

Thanks,
Fernando