mobile

I just rooted my phone, restarted made sure it was working (not the first time I've rooted), then I installed a few zips, restarted my phone a couple times and it was all working fine. I then made a nandroid backup with TWRP, and restarted my phone and it's suddenly running really slow, and I have the constant message saying "Storage Space running out". I even just restored my phone to this backup, but as I expected, same error. Any ideas?:crying: