SETUP ISSUE

Urgent. I Have just bought wplms theme.when i upload the theme it stops at installing phases for hours. when I clicked on themes and searched for wplms it shows stylesheet missing. then I tried using manual setup as suggested in previous posts.link-https://wplms.io/support/knowledge-base/manually-updating-wplms/#bbp_login_widget-4 the theme get installed but on clicking on setup wizard it shows-Theme/wplms/assets =0/0755 and Theme/wplms/Plugins = 0/0755 recommended values are 0755 and my are 0. I tried the solution written in old post to Set the folder permissions recursively on wp-content/themes and wp-content/plugins to 755 and file permissions should be 644. BUT it did not work for me. when I ignored the message and started installing plugins i got this message.There has been a critical error on your website. Please check your site admin email inbox for instructions. on my email account email shows that this error is due to wplms theme. please help me. themeforest username - pdrad email - [email protected]