You may be experiencing some browser-related issues, HTFSOD.

I'm here to help you fix the issue you encountered so you can continue making a price rule inactive.

To begin with, let's deactivate a price rule through an incognito window. You may use these keyboard shortcuts to open one:

• Google Chrome: Ctrl + Shift + N
• Microsoft Edge & Mozilla Firefox: Ctrl + Shift + P
• Safari: Control + Option + P

If you're able to deactivate the rule, you may go back to a regular browser and clear its cache. Piled cache can also be the reason for some unexpected issues on the opened pages. You can also use a different supported browser like Google Chrome, Mozilla Firefox, Microsoft Edge, or Safari.

Furthermore, I've added this article on how you can accept payments electronically: Take and process payments online.

You can always post in the forum whenever you have concerns about making a price rule inactive.