I just got the feeling you are talking about the
Wordpress Admin page and NOT the
Cpanel, right? In that case, restore the backup of your site and try again.
No backup? Wordpress even warns and advises you to back up your database before updating. If you chose to ignore that warning, then you've just learned a very valuable lesson ... which is ironic seeing as it's an "educational site".
I recommend the "Updraft" plugin to backup your site to Google drive and set it to automatically backup your site at least weekly.
As for fixing your site, I'd write to
support@alidropship.com and give them the login details to your Admin AND Cpanel and "maybe" they could help you. I say "maybe" because it's not an Alidropship plugin problem.
Failing that, ask your webhost support and see if they can help.
Failing that, hire a freelance web developer to try and fix the problem.
And failing that ... scrap your entire site and start from scratch and this time pay attention to warnings about making backups.