No, we assure you that this is not the case. We tested all of our apps before uploading them so it shouldn't be giving any issues unless your phone is rooted and has Xposed installed or something similar. Or maybe there's some other underlying issue with your device's OS / firmware which prevents apps from running properly when modified in certain ways.
But in most cases when people get force closes all they really need to do is uninstall any incompatible apps they might have installed recently, like antivirus software or stuff like that. You may also want to try refraining from using Hola or any proxy connections when you use our modded apks unless it's absolutely necessary (like in certain educational / security apps for example).