Hello There,
The plugin should be updated from the plugin dashboard of your site.
If it shows any error, I would like to suggest you, please upload the latest plugin file from your WPManageNinja license dashboard.
Do not worry about the process. I am attaching a documentation URL below.
It will guide you step by step through the process.
Please check it out: https://paymattic.com/docs/how-to-install-and-activate-paymattic-in-wordpress/
Please check the screenshot; it will also help you: Click Here
Feel free to update the product. I hope you will be amazed by the new features of Paymattic.
N.B: You will not lose any data during this process.
Thank you!
