Unable to create password protected link on standard test account

Unable to create password protected link on standard test account

Hi

I’m currently   testing zoho writer  and started the 15 day test phase of the standard plan to test the   sharing functionality (password protected link). But currently it's not working. I added three screenshots to illustrate my problem. 

(1) As you can see the test phase for the Standard Edition is active with 15 days remaining




(2) But I still cannot choose the password protected link. 



(3) I always get redirected to the upgrade site...



Do you know a way to create these links? 

Best!