Yeah, I've had problems on my tablet,however it believe it is unavoidable in some cases,I haVe experienced many times, errors with my client (app), my internet provider and others. I think you may just have to deal with the occasional failure as we can't do much about it realistically. I suggest restarting your device and reinstalling the app if the problem persists. Although even those solutions have been shown to not function as planned. Somet9you just have to wait and hope for the best. I've noticed IMVU not neglecting the mobile versions of Imvu so much and it really is appreciated on some level.
I even find the PC client to be annoying sometimes...