I played for a while on the Free version and got up to Cupboards of Kithgard. Then I signed up for an account with Google Sign-on to save my progress, and unexpectedly almost all my progress was obliterated. I lost all my gems, and my armor, ring, and gloves were locked without warning.
Could you fix this, please?
Hi @yoheved and welcome to the forum! 
Try to contact suport@codecombat.com and describe them your issue and they might be able to help you, or you can also try to make a post about this into the Code Combat slack because the developers are more active there then they are here. (Here is the link to the Code Combat slack.)
Andrei