Error in parallel simulation after downgrading from OF6 to OF3.
 

I use the icoFoam solver for parallel simulation using the decomposePar utility on OpenFoam 6 on the HPC. Lately due to some reason I had to use OF 3.0.1. I observed that the simulations started correctly. However, when I stopped the simulation and restarted them using the latestTime in the controlDict, I got the following error. As you can see it says p file is not present in the decomposed time step due to which it cannot proceed further. I found that as soon as I downgraded from OF 6 to OF 3.0.1, the solver stopped writing p, phi and U files in the decomposed folders. It only writes the field average function that I have asked it to write in my controlDict. Why did it stop writing p, phi and U variables after downgrading. Can you suggest a solution for this?