Plug-in not responding

Dear Sir,

I am stack on exercise hands on 5, my plug-in dialog box is not responding particularly the drop down arrow for the population hence I cannot proceed now. what could be the problem? I have QGIS 3.10

Please help!

Best regards,

Dear Muceka,

I have not seen this problem before. Could it be that the specifications on your computer are low?

Can you please join the help-session schedule for today (same link and time as previous sessions) and perhaps show me live?

Best regards,
Babak

Also, are you sure that all the datasets are loaded into your QGIS?