Cant enter the big city because of glitches!!!

I love the game and the whole idea of driving in this virtual world but ever since the new update was released, I cant enter the big city through the tunnel without the game glitching and taking me back to to home page on my phone. Its really annoying that I cant get to the connected city. PLEASE FIX ASAP!!!

Torri_85 about High School Driving Test 3D, v1.8