About your problem, we tried our best to fix. However, we see you install some of module about language that we don't know. Errors can arise from it.
I think you can delete all and rework. I'm sorry...
i only install the modules after try our tutorial. However, i uninstall all modules and the error is the same. Please help with this problem or tell if this site can be a multi language site. If this information was in the description of product i never buy the product.