what render engine is this its not corona?
It's Corona & LuxCore.
BTW Care to strip down your scene, isolate it to only what's needed to expose an issue... or render until it clears. Because it might just be a hard case to solve/compute (image would also be noisy even when taking a photo w/o relying on tricks, SFX & post) or there are some unnatural values/settings in play... idk. Basically it comes down to what's
in detail - devil & god ;) Then it's not so uncommon for making such photo/image for hours or rendering for days.