Unable to Login to WooSMS Admin Dashboard for Multisite Setup

Hi There,

I am running a multisite environment, and I have been trying to get WooSMS plugin to work on one of my subsite. I tested anything other than my “Main” subsite is unable to login to the admin dashboard, as soon as i type in my correct credentials i am redirected to an error page indicating that “Sorry, you are not allowed to access this page.” I am a super admin for all my sites.

Attached is the screenshot for your kind reference.

Appreciate if you could assist on the following. Thanks!

Regards,
Wen Jun.