Reached Device Activations Limit .Please help me to reset my Adobe ID!

I'm using Bookari and Google Plays Books.

They use Adobe Digital Editions as a DRM service.

And now both of my Adobe Digital Editions IDs (one is self adobe id, and one is from Bookari which is an e-book reader app) cannot log in to authorize any new device.

It tells "Your account has exceeded the maximum number of activations allowed."

Please help me to reset it.