Hi @pareshsolanki665,
Hmm, have you made certain custom modifications to the plugin?
Please try to download the official plugin version from here: https://wordpress.org/plugins/paid-member-subscriptions/ -> install and activate it on your site -> and check if you still encounter this issue.
Yes, I have made some custom modifications related to the PMS forms and design.
However, I already updated/reinstalled the official plugin version, and the issue still persists. The database data/settings remain the same after reinstalling the plugin.
Before the site migration, Stripe was connected and working correctly. The issue started only after migrating the website to the new hosting/server.
Even multiple Stripe plugins now fail during the OAuth reconnect process after redirecting back to wp-admin.
Due to the situation you are facing, my suggestion is to open a ticket on our website, https://www.cozmoslabs.com/support/open-ticket/?support_for=Pre-sale%20question, as we will have to investigate this issue in detail. Please also point out that you have already contacted us on the WordPress forum and add a link to the conversation in the ticket you will create.