can not open it..help me

Dear sir

 

I am draftsiht free vesion user

 

The software vesion is 2017 sp1  for 32 bit

 

When I open this software today

 

It show the message “to fill in e-mail ”or other imformatiom about register I forgot

 

And I shut down this block ,after then , I can not open ot anymore

 

I try uninstall and reinstall (2017 SP1 & 2017SP3)

 

Still same!!

 

How can I then restart?

 

Please help me!!