Testing for Theme and Plugin Conflicts
How to rule out theme and plugin conflicts if things aren't working right.
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FAQs
Frequently asked questions.
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System Requirements for WP Simple Pay
Web host requirements and recommendations (PHP, SSL, etc). -
Caching
How to detect and troubleshooting site caching issues. -
Plugin .zip File Automatically Un-zips Upon Download
Some web browsers, especially Safari on Macs, will un-zip the “.zip” file automatically upon download. If this happens, you will... -
rest_cookie_invalid_nonce – Cookie nonce is invalid
Sometimes you or your site visitors might experience issues related to caching while using WP Simple Pay. In most cases,... -
Coupon security check failed
Sometimes you or your site visitors might experience issues related to caching while using WP Simple Pay. In most cases,... -
406/403 Not Acceptable – ModSecurity
ModSecurity is an open source firewall solution that some web hosts automatically enable on their servers. Some configurations of ModSecurity... -
Sorry, you have made too many requests. Please try again later
WP Simple Pay automatically limits the number of consecutive requests that can be made by a single IP address. By... -
rest_no_route – No route was found matching the URL and request method.
WP Simple Pay uses WordPress’ REST API to process payment forms and the REST API endpoints must be accessible for... -
Email receipts and/or notifications are not being sent
Testing whether emails are actually being sent A quick test to see whether any of your WordPress emails are being sent is...