Hi Audipower,
So let's try to reconfigure the Spam folder (in your AquaMail's Gmail account)
> long press on Account name (your Gmail account) > Options and folders > folders > tap on folder named "Spam" > choose "Spam, do not sync" > back > back > the Spam folder should be gone in the account list / folder view.
If you still see another spam folder (e.g. named as "Junk") repeat the above mentioned steps also for this folder.
Regards
Mikeone