The tab saving mechanism must have not worked properly. Assuming you were stuck in the yellow phase due to your upgrades, try reuploading with the following save:
{"lastTick":1614543052280,"sinceLastSave":5.434999999999997,"firstStartDelay":3.0469999999999984,"speed":106.35111168374448,"maxSpeed":1000,"nitro":true,"rocketBooster":true,"speedCap":106.35111168374448,"capUpgrades":13,"speedUpgrades":14,"brakes":17,"airbags":8,"seatbelts":true,"testDummy":1,"milestones":[0,1],"progress":[0,1,2,3,4,5,7,8,9],"impatience":0,"roadRage":1,"traffic":1,"temperTantrum":false,"gameOver":false,"tab":2,"layerSubtab":[1,1,1]}