no error showing in the console…
I found the problem…
As my site is multisite WordPress and my site id is 2 where I need the plugin to work…
here this plugin creates a table in the database as wptableprefix_ymm, but in my case, as it is multisite and my table prefix for the site is wptableprefix_2_ymm.
I just update the table name in my database and plugin works perfectly.
I think you need some update in your plugin code for this multisite issue.
Thank You..