Is the paper you published based on your PhD work? If so you are surely not behind and it would be hard to not pass your review! You just need a cohesive research plan. It doesn't even matter if you end up following it in the end. It just needs to look realistic.
Re your supervisor, I wonder what is going on here. Are they busy and stressed due to personal and professional commitments in the lockdown / stay home situation, I wonder. What exactly are you saying in your email, and how are they replying, or are they simply ignoring you?