Hello quinju,
Thank you so much for using our theme AcmeBlog.
If it works fine on localhost but error occur on sever, please try once by update the permalink.
Have you edited any line of code? Is others WordPress default theme like ‘TwentyFifteen’ is working fine? Try once by switching the theme to default WordPress theme and if the error doesn’t occur, please do write us, we will sure help you.
Thanks