Apparently, for privacy I have encrypted data on my mobile. A few pics (family ones).
This I did through ES File manager, was using AppLock previously but encountered a few errors for storage so I decided to encrypt it through ES.
And as it has been a few days since I opened it, I forgot the password.
I've already tried various combinations and all but my attempts gone in vain. The pics are kinda nostalgic and I don't have a copy elsewhere.
I tried the official site, they were sorry that they do not maintain servers to store the passwords and asked me to keep trying.
Phone specs
Moto E using ES File manager 3