I am getting the same message when clicking the sign in button on https://openuni.acumatica.com/.  
 

Maybe @Elena Abilova could help point us in the right direction. 

hi @Atiq and @Robert Sternberg.

If you see this screen, please fill out and submit the form and my team will unlock your account as soon as they see the message from you. As far as I can see, there are no active requests now. Could you please confirm this is resolved?

Happy New Year!

Happy new year!  
 

@Elena Abilova I confirmed and this process worked for me. Thank you for the help!  @Atiq  you should be able to follow the same process. 

Hi @Elena Abilova ,

                                Thank You, it Resolved for me

@Atiq and @Rob Jaenke, Thank you for confirming!